Drag move gesture in user interface

ABSTRACT

Embodiments are directed to gesture-based navigation through windows displayed on a mobile device by receiving a first gesture through a touch-sensitive screen of the mobile device. In response to receiving the first gesture, display of a first window of an ordered set of windows on a first display area of the touch sensitive screen can be stopped and display of the first window on the second display area of the touch sensitive screen can be started. In response to receiving a second gesture, display of a second window of the ordered set of windows on the first display area can be stopped and display of the second displayed window on the second display area can be started. The second displayed window on the second display area can at least partially obscures the first displayed window on the second display area.

CROSS REFERENCE TO RELATED APPLICATIONS

The present application is a continuation of and claims priority to U.S. patent application Ser. No. 14/839,727, filed Aug. 28, 2015, of the same title, which is a continuation of and claims priority to U.S. patent application Ser. No. 13/223,697, filed Sep. 1, 2011, entitled “DRAG MOVE GESTURE IN USER INTERFACE,” which claims the benefits of and priority, under 35 U.S.C. § 119(e), to U.S. Provisional Application Ser. No. 61/389,000, filed Oct. 1, 2010, entitled “DUAL DISPLAY WINDOWING SYSTEM;” 61/389,117, filed Oct. 1, 2010, entitled “MULTI-OPERATING SYSTEM PORTABLE DOCKETING DEVICE;” 61/389,087, filed Oct. 1, 2010, entitled “TABLET COMPUTING USER INTERFACE.” Each of the aforementioned documents is incorporated herein by this reference in their entirety for all that they teach and for all purposes.

BACKGROUND

A substantial number of handheld computing devices, such as cellular phones, tablets, and E-Readers, make use of a touch screen display not only to deliver display information to the user but also to receive inputs from user interface commands. While touch screen displays may increase the configurability of the handheld device and provide a wide variety of user interface options, this flexibility typically comes at a price. The dual use of the touch screen to provide content and receive user commands, while flexible for the user, may obfuscate the display and cause visual clutter, thereby leading to user frustration and loss of productivity.

The small form factor of handheld computing devices requires a careful balancing between the displayed graphics and the area provided for receiving inputs. On the one hand, the small display constrains the display space, which may increase the difficulty of interpreting actions or results. On the other hand, a virtual keypad or other user interface scheme is superimposed on or positioned adjacent to an executing application, requiring the application to be squeezed into an even smaller portion of the display.

This balancing act is particularly difficult for single display touch screen devices. Single display touch screen devices are crippled by their limited screen space. When users are entering information into the device, through the single display, the ability to interpret information in the display can be severely hampered, particularly when a complex interaction between display and interface is required.

SUMMARY

There is a need for a dual multi-display handheld computing device that provides for enhanced power and/or versatility compared to conventional single display handheld computing devices. These and other needs are addressed by the various aspects, embodiments, and/or configurations of the present disclosure. Also, while the disclosure is presented in terms of exemplary embodiments, it should be appreciated that individual aspects of the disclosure can be separately claimed.

In one embodiment, a method provides the steps of:

(a) receiving, by one or both of a gesture capture region and a touch sensitive display, a gesture (which is commonly a drag gesture); and

(b) in response, ceasing to display a first displayed image on a first touch sensitive display of a communication device and commencing to display the first displayed image on a second touch sensitive display of the communication device, the first displayed image being one or both of a desktop and window of an application.

In one embodiment, a method provides the steps of:

(a) receiving, by one or more of a gesture capture region and a touch sensitive display, a gesture (which is commonly a drag gesture);

(b) determining that a dual display communication device is in a closed state, wherein, in the closed state, a first touch sensitive display is enabled but a second touch sensitive display is disabled; and

(c) in response, ceasing to display a first displayed image on the first touch sensitive display and displaying a different second displayed image on the first touch sensitive display, wherein the first displayed image is one or more of a desktop and window of an application.

In one embodiment, a dual display communication device includes:

(i) a gesture capture region to receive a gesture; and

(ii) a first touch sensitive display to receive a gesture and display displayed images, wherein the displayed images are one or more of a desktop and window of an application;

(iii) a second touch sensitive display to receive a gesture and display displayed images;

(iv) middleware operable to perform one or more of the following operations:

(A) in response to a received gesture (which is commonly a drag gesture), commencing to display the first displayed image on the second touch sensitive display; and

(B) determine that the dual display communication device is in a closed state, wherein, in the closed state, a first touch sensitive display is enabled but a second touch sensitive display is disabled and in response to the received gesture, displaying a different second displayed image on the first touch sensitive display.

In one configuration, the first displayed image is a desktop, the gesture is received by the touch sensitive display, and the desktop is one of a plurality of an ordered set of desktop images.

In one configuration, the displayed image is a window, the gesture is received by the gesture capture region, the gesture capture region is unable to display any displayed image, and the window is one of a plurality of an ordered set of windows.

In one configuration, a gesture received by the gesture capture region enables navigation through an ordered set of desktops or windows and a gesture received by the touch sensitive display enables navigation through an ordered set of the other of desktops or windows.

In one configuration, the communication device has opened and closed states, in the opened state, both the first and second touch sensitive displays are enabled, in the closed state, the first touch sensitive display is enabled but the second touch sensitive display is disabled, and wherein the communication device is currently in the opened state.

In one configuration, the first and second touch sensitive displays are each in the portrait display orientation, the first touch sensitive display thereafter displays a second displayed image different from the first displayed image, a third displayed image different from the first displayed image was previously displayed by the second touch sensitive display, and the first and second displayed images, in response, are in active positions and the third displayed image is in an inactive position.

In one configuration, the first touch sensitive display is in the portrait display orientation, the communication device has opened and closed states, in the opened state, both the first and second touch sensitive displays are enabled, the first displayed image was previously in an active state and the second displayed image in an inactive state, and in response, the first displayed image is now in the inactive state and the second displayed image is now in the active state. The present disclosure can provide a number of advantages depending on the particular aspect, embodiment, and/or configuration. The communication display can enable an effective, convenient, and intuitive methodology for a user to navigate through or reorder display objects, such as stacks or ordered sets of windows and/or desktops, using a dual display communication device, particularly a cellular or wireless phone.

These and other advantages will be apparent from the disclosure.

The phrases “at least one”, “one or more”, and “and/or” are open-ended expressions that are both conjunctive and disjunctive in operation. For example, each of the expressions “at least one of A, B and C”, “at least one of A, B, or C”, “one or more of A, B, and C”, “one or more of A, B, or C” and “A, B, and/or C” means A alone, B alone, C alone, A and B together, A and C together, B and C together, or A, B and C together.

The term “a” or “an” entity refers to one or more of that entity. As such, the terms “a” (or “an”), “one or more” and “at least one” can be used interchangeably herein. It is also to be noted that the terms “comprising”, “including”, and “having” can be used interchangeably.

The term “automatic” and variations thereof, as used herein, refers to any process or operation done without material human input when the process or operation is performed. However, a process or operation can be automatic, even though performance of the process or operation uses material or immaterial human input, if the input is received before performance of the process or operation. Human input is deemed to be material if such input influences how the process or operation will be performed. Human input that consents to the performance of the process or operation is not deemed to be “material”.

The term “computer-readable medium” as used herein refers to any tangible storage and/or transmission medium that participate in providing instructions to a processor for execution. Such a medium may take many forms, including but not limited to, non-volatile media, volatile media, and transmission media. Non-volatile media includes, for example, NVRAM, or magnetic or optical disks. Volatile media includes dynamic memory, such as main memory. Common forms of computer-readable media include, for example, a floppy disk, a flexible disk, hard disk, magnetic tape, or any other magnetic medium, magneto-optical medium, a CD-ROM, any other optical medium, punch cards, paper tape, any other physical medium with patterns of holes, a RAM, a PROM, and EPROM, a FLASH-EPROM, a solid state medium like a memory card, any other memory chip or cartridge, a carrier wave as described hereinafter, or any other medium from which a computer can read. A digital file attachment to e-mail or other self-contained information archive or set of archives is considered a distribution medium equivalent to a tangible storage medium. When the computer-readable media is configured as a database, it is to be understood that the database may be any type of database, such as relational, hierarchical, object-oriented, and/or the like. Accordingly, the disclosure is considered to include a tangible storage medium or distribution medium and prior art-recognized equivalents and successor media, in which the software implementations of the present disclosure are stored.

The term “desktop” refers to a metaphor used to portray systems. A desktop is generally considered a “surface” that typically includes pictures, called icons, widgets, folders, etc. that can activate show applications, windows, cabinets, files, folders, documents, and other graphical items. The icons are generally selectable to initiate an task through user interface interaction to allow a user to execute applications or conduct other operations.

The term “display” refers to a portion of a screen used to display the output of a computer to a user.

The term “displayed image” refers to an image produced on the display. A typical displayed image is a window or desktop. The displayed image may occupy all or a portion of the display.

The term “display orientation” refers to the way in which a rectangular display is oriented by a user for viewing. The two most common types of display orientation are portrait and landscape. In landscape mode, the display is oriented such that the width of the display is greater than the height of the display (such as a 4:3 ratio, which is 4 units wide and 3 units tall, or a 16:9 ratio, which is 16 units wide and 9 units tall). Stated differently, the longer dimension of the display is oriented substantially horizontal in landscape mode while the shorter dimension of the display is oriented substantially vertical. In the portrait mode, by contrast, the display is oriented such that the width of the display is less than the height of the display. Stated differently, the shorter dimension of the display is oriented substantially horizontal in the portrait mode while the longer dimension of the display is oriented substantially vertical. The multi-screen display can have one composite display that encompasses all the screens. The composite display can have different display characteristics based on the various orientations of the device.

The term “gesture” refers to a user action that expresses an intended idea, action, meaning, result, and/or outcome. The user action can include manipulating a device (e.g., opening or closing a device, changing a device orientation, moving a trackball or wheel, etc.), movement of a body part in relation to the device, movement of an implement or tool in relation to the device, audio inputs, etc. A gesture may be made on a device (such as on the screen) or with the device to interact with the device.

The term “module” as used herein refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and software that is capable of performing the functionality associated with that element.

The term “gesture capture” refers to a sense or otherwise a detection of an instance and/or type of user gesture. The gesture capture can occur in one or more areas of the screen, A gesture region can be on the display, where it may be referred to as a touch sensitive display or off the display where it may be referred to as a gesture capture area.

A “multi-screen application” refers to an application that is capable of producing one or more windows that may simultaneously occupy multiple screens. A multi-screen application commonly can operate in single-screen mode in which one or more windows of the application are displayed only on one screen or in multi-screen mode in which one or more windows are displayed simultaneously on multiple screens.

A “single-screen application” refers to an application that is capable of producing one or more windows that may occupy only a single screen at a time.

The term “screen,” “touch screen,” or “touchscreen” refers to a physical structure that enables the user to interact with the computer by touching areas on the screen and provides information to a user through a display. The touch screen may sense user contact in a number of different ways, such as by a change in an electrical parameter (e.g., resistance or capacitance), acoustic wave variations, infrared radiation proximity detection, light variation detection, and the like. In a resistive touch screen, for example, normally separated conductive and resistive metallic layers in the screen pass an electrical current. When a user touches the screen, the two layers make contact in the contacted location, whereby a change in electrical field is noted and the coordinates of the contacted location calculated. In a capacitive touch screen, a capacitive layer stores electrical charge, which is discharged to the user upon contact with the touch screen, causing a decrease in the charge of the capacitive layer. The decrease is measured, and the contacted location coordinates determined. In a surface acoustic wave touch screen, an acoustic wave is transmitted through the screen, and the acoustic wave is disturbed by user contact. A receiving transducer detects the user contact instance and determines the contacted location coordinates.

The term “window” refers to a, typically rectangular, displayed image on at least part of a display that contains or provides content different from the rest of the screen. The window may obscure the desktop.

The terms “determine”, “calculate” and “compute,” and variations thereof, as used herein, are used interchangeably and include any type of methodology, process, mathematical operation or technique.

It shall be understood that the term “means” as used herein shall be given its broadest possible interpretation in accordance with 35 U.S.C., Section 112, Paragraph 6. Accordingly, a claim incorporating the term “means” shall cover all structures, materials, or acts set forth herein, and all of the equivalents thereof. Further, the structures, materials or acts and the equivalents thereof shall include all those described in the summary of the invention, brief description of the drawings, detailed description, abstract, and claims themselves.

The preceding is a simplified summary of the disclosure to provide an understanding of some aspects of the disclosure. This summary is neither an extensive nor exhaustive overview of the disclosure and its various aspects, embodiments, and/or configurations. It is intended neither to identify key or critical elements of the disclosure nor to delineate the scope of the disclosure but to present selected concepts of the disclosure in a simplified form as an introduction to the more detailed description presented below. As will be appreciated, other aspects, embodiments, and/or configurations of the disclosure are possible utilizing, alone or in combination, one or more of the features set forth above or described in detail below.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A includes a first view of an embodiment of a multi-screen user device;

FIG. 1B includes a second view of an embodiment of a multi-screen user device;

FIG. 1C includes a third view of an embodiment of a multi-screen user device;

FIG. 1D includes a fourth view of an embodiment of a multi-screen user device;

FIG. 1E includes a fifth view of an embodiment of a multi-screen user device;

FIG. 1F includes a sixth view of an embodiment of a multi-screen user device;

FIG. 1G includes a seventh view of an embodiment of a multi-screen user device;

FIG. 1H includes a eighth view of an embodiment of a multi-screen user device;

FIG. 1I includes a ninth view of an embodiment of a multi-screen user device;

FIG. 1J includes a tenth view of an embodiment of a multi-screen user device;

FIG. 2 is a block diagram of an embodiment of the hardware of the device;

FIG. 3A is a block diagram of an embodiment of the state model for the device based on the device's orientation and/or configuration;

FIG. 3B is a table of an embodiment of the state model for the device based on the device's orientation and/or configuration;

FIG. 4A is a first representation of an embodiment of user gesture received at a device;

FIG. 4B is a second representation of an embodiment of user gesture received at a device;

FIG. 4C is a third representation of an embodiment of user gesture received at a device;

FIG. 4D is a fourth representation of an embodiment of user gesture received at a device;

FIG. 4E is a fifth representation of an embodiment of user gesture received at a device;

FIG. 4F is a sixth representation of an embodiment of user gesture received at a device;

FIG. 4G is a seventh representation of an embodiment of user gesture received at a device;

FIG. 4H is a eighth representation of an embodiment of user gesture received at a device;

FIG. 5A is a block diagram of an embodiment of the device software and/or firmware;

FIG. 5B is a second block diagram of an embodiment of the device software and/or firmware;

FIG. 6A is a first representation of an embodiment of a device configuration generated in response to the device state;

FIG. 6B is a second representation of an embodiment of a device configuration generated in response to the device state;

FIG. 6C is a third representation of an embodiment of a device configuration generated in response to the device state;

FIG. 6D is a fourth representation of an embodiment of a device configuration generated in response to the device state;

FIG. 6E is a fifth representation of an embodiment of a device configuration generated in response to the device state;

FIG. 6F is a sixth representation of an embodiment of a device configuration generated in response to the device state;

FIG. 6G is a seventh representation of an embodiment of a device configuration generated in response to the device state;

FIG. 6H is a eighth representation of an embodiment of a device configuration generated in response to the device state;

FIG. 6I is a ninth representation of an embodiment of a device configuration generated in response to the device state;

FIG. 6J is a tenth representation of an embodiment of a device configuration generated in response to the device state;

FIGS. 7A-B are a series of portrait display orientation screen shots according to an embodiment;

FIGS. 8A-D are a series of portrait display orientation screen shots according to an embodiment;

FIGS. 9A-D are a series of portrait display orientation screen shots according to an embodiment;

FIGS. 10A-C are a series of portrait display orientation screen shots according to an embodiment;

FIGS. 11A-C are a series of portrait display orientation screen shots according to an embodiment;

FIGS. 12A-B are a series of landscape display orientation screen shots according to an embodiment;

FIG. 13 is a flow chart representing an embodiment;

FIG. 14 is a flow chart representing an embodiment;

FIG. 15A-C are a series of landscape display orientation screen shots according to an embodiment;

FIG. 16A-C are a series of landscape display orientation screen shots according to an embodiment; and

FIG. 17A is representation of a logical window stack;

FIG. 17B is another representation of an embodiment of a logical window stack;

FIG. 17C is another representation of an embodiment of a logical window stack;

FIG. 17D is another representation of an embodiment of a logical window stack;

FIG. 17E is another representation of an embodiment of a logical window stack;

FIG. 18 is block diagram of an embodiment of a logical data structure for a window stack;

FIG. 19 is a flow chart of an embodiment of a method for creating a window stack; and

FIG. 20 depicts a window stacking configuration according to an embodiment.

In the appended figures, similar components and/or features may have the same reference label. Further, various components of the same type may be distinguished by following the reference label by a letter that distinguishes among the similar components. If only the first reference label is used in the specification, the description is applicable to any one of the similar components having the same first reference label irrespective of the second reference label.

DETAILED DESCRIPTION

Presented herein are embodiments of a device. The device can be a communications device, such as a cellular telephone, or other smart device. The device can include two screens that are oriented to provide several unique display configurations. Further, the device can receive user input in unique ways. The overall design and functionality of the device provides for an enhanced user experience making the device more useful and more efficient.

Mechanical Features:

FIGS. 1A-1J illustrate a device 100 in accordance with embodiments of the present disclosure. As described in greater detail below, device 100 can be positioned in a number of different ways each of which provides different functionality to a user. The device 100 is a multi-screen device that includes a primary screen 104 and a secondary screen 108, both of which are touch sensitive. In embodiments, the entire front surface of screens 104 and 108 may be touch sensitive and capable of receiving input by a user touching the front surface of the screens 104 and 108. Primary screen 104 includes touch sensitive display 110, which, in addition to being touch sensitive, also displays information to a user. Secondary screen 108 includes touch sensitive display 114, which also displays information to a user. In other embodiments, screens 104 and 108 may include more than one display area.

Primary screen 104 also includes a configurable area 112 that has been configured for specific inputs when the user touches portions of the configurable area 112. Secondary screen 108 also includes a configurable area 116 that has been configured for specific inputs. Areas 112 a and 116 a have been configured to receive a “back” input indicating that a user would like to view information previously displayed. Areas 112 b and 116 b have been configured to receive a “menu” input indicating that the user would like to view options from a menu. Areas 112 c and 116 c have been configured to receive a “home” input indicating that the user would like to view information associated with a “home” view. In other embodiments, areas 112 a-c and 116 a-c may be configured, in addition to the configurations described above, for other types of specific inputs including controlling features of device 100, some non-limiting examples including adjusting overall system power, adjusting the volume, adjusting the brightness, adjusting the vibration, selecting of displayed items (on either of screen 104 or 108), operating a camera, operating a microphone, and initiating/terminating of telephone calls. Also, in some embodiments, areas 112 a-c and 116 a-c may be configured for specific inputs depending upon the application running on device 100 and/or information displayed on touch sensitive displays 110 and/or 114.

In addition to touch sensing, primary screen 104 and secondary screen 108 may also include areas that receive input from a user without requiring the user to touch the display area of the screen. For example, primary screen 104 includes gesture capture area 120, and secondary screen 108 includes gesture capture area 124. These areas are able to receive input by recognizing gestures made by a user without the need for the user to actually touch the surface of the display area. In comparison to touch sensitive displays 110 and 114, the gesture capture areas 120 and 124 are commonly not capable of rendering a displayed image.

The two screens 104 and 108 are connected together with a hinge 128, shown clearly in FIG. 1C (illustrating a back view of device 100). Hinge 128, in the embodiment shown in FIGS. 1A-1J, is a center hinge that connects screens 104 and 108 so that when the hinge is closed, screens 104 and 108 are juxtaposed (i.e., side-by-side) as shown in FIG. 1B (illustrating a front view of device 100). Hinge 128 can be opened to position the two screens 104 and 108 in different relative positions to each other. As described in greater detail below, the device 100 may have different functionalities depending on the relative positions of screens 104 and 108.

FIG. 1D illustrates the right side of device 100. As shown in FIG. 1D, secondary screen 108 also includes a card slot 132 and a port 136 on its side. Card slot 132 in embodiments, accommodates different types of cards including a subscriber identity module (SIM). Port 136 in embodiments is an input/output port (I/O port) that allows device 100 to be connected to other peripheral devices, such as a display, keyboard, or printing device. As can be appreciated, these are merely some examples and in other embodiments device 100 may include other slots and ports such as slots and ports for accommodating additional memory devices and/or for connecting other peripheral devices. Also shown in FIG. 1D is an audio jack 140 that accommodates a tip, ring, sleeve (TRS) connector for example to allow a user to utilize headphones or a headset.

Device 100 also includes a number of buttons 158. For example, FIG. 1E illustrates the left side of device 100. As shown in FIG. 1E, the side of primary screen 104 includes three buttons 144, 148, and 152, which can be configured for specific inputs. For example, buttons 144, 148, and 152 may be configured to, in combination or alone, control a number of aspects of device 100. Some non-limiting examples include overall system power, volume, brightness, vibration, selection of displayed items (on either of screen 104 or 108), a camera, a microphone, and initiation/termination of telephone calls. In some embodiments, instead of separate buttons two buttons may be combined into a rocker button. This arrangement is useful in situations where the buttons are configured to control features such as volume or brightness. In addition to buttons 144, 148, and 152, device 100 also includes a button 156, shown in FIG. 1F, which illustrates the top of device 100. In one embodiment, button 156 is configured as an on/off button used to control overall system power to device 100. In other embodiments, button 156 is configured to, in addition to or in lieu of controlling system power, control other aspects of device 100. In some embodiments, one or more of the buttons 144, 148, 152, and 156 are capable of supporting different user commands. By way of example, a normal press has a duration commonly of less than about 1 second and resembles a quick tap. A medium press has a duration commonly of 1 second or more but less than about 12 seconds. A long press has a duration commonly of about 12 seconds or more. The function of the buttons is normally specific to the application that is currently in focus on the respective display 110 and 114. In a telephone application for instance and depending on the particular button, a normal, medium, or long press can mean end call, increase in call volume, decrease in call volume, and toggle microphone mute. In a camera or video application for instance and depending on the particular button, a normal, medium, or long press can mean increase zoom, decrease zoom, and take photograph or record video.

There are also a number of hardware components within device 100. As illustrated in FIG. 1C, device 100 includes a speaker 160 and a microphone 164. Device 100 also includes a camera 168 (FIG. 1B). Additionally, device 100 includes two position sensors 172A and 172B, which are used to determine the relative positions of screens 104 and 108. In one embodiment, position sensors 172A and 172B are Hall effect sensors. However, in other embodiments other sensors can be used in addition to or in lieu of the Hall effect sensors. An accelerometer 176 may also be included as part of device 100 to determine the orientation of the device 100 and/or the orientation of screens 104 and 108. Additional internal hardware components that may be included in device 100 are described below with respect to FIG. 2.

The overall design of device 100 allows it to provide additional functionality not available in other communication devices. Some of the functionality is based on the various positions and orientations that device 100 can have. As shown in FIGS. 1B-1G, device 100 can be operated in an “open” position where screens 104 and 108 are juxtaposed. This position allows a large display area for displaying information to a user. When position sensors 172A and 172B determine that device 100 is in the open position, they can generate a signal that can be used to trigger different events such as displaying information on both screens 104 and 108. Additional events may be triggered if accelerometer 176 determines that device 100 is in a portrait position (FIG. 1B) as opposed to a landscape position (not shown).

In addition to the open position, device 100 may also have a “closed” position illustrated in FIG. 1H. Again, position sensors 172A and 172B can generate a signal indicating that device 100 is in the “closed” position. This can trigger an event that results in a change of displayed information on screen 104 and/or 108. For example, device 100 may be programmed to stop displaying information on one of the screens, e.g., screen 108, since a user can only view one screen at a time when device 100 is in the “closed” position. In other embodiments, the signal generated by position sensors 172A and 172B, indicating that the device 100 is in the “closed” position, can trigger device 100 to answer an incoming telephone call. The “closed” position can also be a preferred position for utilizing the device 100 as a mobile phone.

Device 100 can also be used in an “easel” position which is illustrated in FIG. 1I. In the “easel” position, screens 104 and 108 are angled with respect to each other and facing outward with the edges of screens 104 and 108 substantially horizontal. In this position, device 100 can be configured to display information on both screens 104 and 108 to allow two users to simultaneously interact with device 100. When device 100 is in the “easel” position, sensors 172A and 172B generate a signal indicating that the screens 104 and 108 are positioned at an angle to each other, and the accelerometer 176 can generate a signal indicating that device 100 has been placed so that the edge of screens 104 and 108 are substantially horizontal. The signals can then be used in combination to generate events that trigger changes in the display of information on screens 104 and 108.

FIG. 1J illustrates device 100 in a “modified easel” position. In the “modified easel” position, one of screens 104 or 108 is used as a stand and is faced down on the surface of an object such as a table. This position provides a convenient way for information to be displayed to a user in landscape orientation. Similar to the easel position, when device 100 is in the “modified easel” position, position sensors 172A and 172B generate a signal indicating that the screens 104 and 108 are positioned at an angle to each other. The accelerometer 176 would generate a signal indicating that device 100 has been positioned so that one of screens 104 and 108 is faced downwardly and is substantially horizontal. The signals can then be used to generate events that trigger changes in the display of information of screens 104 and 108. For example, information may not be displayed on the screen that is face down since a user cannot see the screen.

Transitional states are also possible. When the position sensors 172A and B and/or accelerometer indicate that the screens are being closed or folded (from open), a closing transitional state is recognized. Conversely when the position sensors 172A and B indicate that the screens are being opened or folded (from closed), an opening transitional state is recognized. The closing and opening transitional states are typically time-based, or have a maximum time duration from a sensed starting point. Normally, no user input is possible when one of the closing and opening states is in effect. In this manner, incidental user contact with a screen during the closing or opening function is not misinterpreted as user input. In embodiments, another transitional state is possible when the device 100 is closed. This additional transitional state allows the display to switch from one screen 104 to the second screen 108 when the device 100 is closed based on some user input, e.g., a double tap on the screen 110,114.

As can be appreciated, the description of device 100 is made for illustrative purposes only, and the embodiments are not limited to the specific mechanical features shown in FIGS. 1A-1J and described above. In other embodiments, device 100 may include additional features, including one or more additional buttons, slots, display areas, hinges, and/or locking mechanisms. Additionally, in embodiments, the features described above may be located in different parts of device 100 and still provide similar functionality. Therefore, FIGS. 1A-1J and the description provided above are nonlimiting.

Hardware Features:

FIG. 2 illustrates components of a device 100 in accordance with embodiments of the present disclosure. In general, the device 100 includes a primary screen 104 and a secondary screen 108. While the primary screen 104 and its components are normally enabled in both the opened and closed positions or states, the secondary screen 108 and its components are normally enabled in the opened state but disabled in the closed state. However, even when in the closed state a user or application triggered interrupt (such as in response to a phone application or camera application operation) can flip the active screen, or disable the primary screen 104 and enable the secondary screen 108, by a suitable command. Each screen 104, 108 can be touch sensitive and can include different operative areas. For example, a first operative area, within each touch sensitive screen 104 and 108, may comprise a touch sensitive display 110, 114. In general, the touch sensitive display 110, 114 may comprise a full color, touch sensitive display. A second area within each touch sensitive screen 104 and 108 may comprise a gesture capture region 120, 124. The gesture capture region 120, 124 may comprise an area or region that is outside of the touch sensitive display 110, 114 area, and that is capable of receiving input, for example in the form of gestures provided by a user. However, the gesture capture region 120, 124 does not include pixels that can perform a display function or capability.

A third region of the touch sensitive screens 104 and 108 may comprise a configurable area 112, 116. The configurable area 112, 116 is capable of receiving input and has display or limited display capabilities. In embodiments, the configurable area 112, 116 may present different input options to the user. For example, the configurable area 112, 116 may display buttons or other relatable items. Moreover, the identity of displayed buttons, or whether any buttons are displayed at all within the configurable area 112, 116 of a touch sensitive screen 104 or 108, may be determined from the context in which the device 100 is used and/or operated. In an exemplary embodiment, the touch sensitive screens 104 and 108 comprise liquid crystal display devices extending across at least those regions of the touch sensitive screens 104 and 108 that are capable of providing visual output to a user, and a capacitive input matrix over those regions of the touch sensitive screens 104 and 108 that are capable of receiving input from the user.

One or more display controllers 216 a, 216 b may be provided for controlling the operation of the touch sensitive screens 104 and 108, including input (touch sensing) and output (display) functions. In the exemplary embodiment illustrated in FIG. 2, a separate touch screen controller 216 a or 216 b is provided for each touch screen 104 and 108. In accordance with alternate embodiments, a common or shared touch screen controller may be used to control each of the included touch sensitive screens 104 and 108. In accordance with still other embodiments, the functions of a touch screen controller may be incorporated into other components, such as a processor 204.

The processor 204 may comprise a general purpose programmable processor or controller for executing application programming or instructions. In accordance with at least some embodiments, the processor 204 may include multiple processor cores, and/or implement multiple virtual processors. In accordance with still other embodiments, the processor 204 may include multiple physical processors. As a particular example, the processor 204 may comprise a specially configured application specific integrated circuit (ASIC) or other integrated circuit, a digital signal processor, a controller, a hardwired electronic or logic circuit, a programmable logic device or gate array, a special purpose computer, or the like. The processor 204 generally functions to run programming code or instructions implementing various functions of the device 100.

A communication device 100 may also include memory 208 for use in connection with the execution of application programming or instructions by the processor 204, and for the temporary or long term storage of program instructions and/or data. As examples, the memory 208 may comprise RAM, DRAM, SDRAM, or other solid state memory. Alternatively or in addition, data storage 212 may be provided. Like the memory 208, the data storage 212 may comprise a solid state memory device or devices. Alternatively or in addition, the data storage 212 may comprise a hard disk drive or other random access memory.

In support of communications functions or capabilities, the device 100 can include a cellular telephony module 228. As examples, the cellular telephony module 228 can comprise a GSM, CDMA, FDMA and/or analog cellular telephony transceiver capable of supporting voice, multimedia and/or data transfers over a cellular network. Alternatively or in addition, the device 100 can include an additional or other wireless communications module 232. As examples, the other wireless communications module 232 can comprise a Wi-Fi, BLUETOOTH™, WiMax, infrared, or other wireless communications link. The cellular telephony module 228 and the other wireless communications module 232 can each be associated with a shared or a dedicated antenna 224.

A port interface 252 may be included. The port interface 252 may include proprietary or universal ports to support the interconnection of the device 100 to other devices or components, such as a dock, which may or may not include additional or different capabilities from those integral to the device 100. In addition to supporting an exchange of communication signals between the device 100 and another device or component, the docking port 136 and/or port interface 252 can support the supply of power to or from the device 100. The port interface 252 also comprises an intelligent element that comprises a docking module for controlling communications or other interactions between the device 100 and a connected device or component.

An input/output module 248 and associated ports may be included to support communications over wired networks or links, for example with other communication devices, server devices, and/or peripheral devices. Examples of an input/output module 248 include an Ethernet port, a Universal Serial Bus (USB) port, Institute of Electrical and Electronics Engineers (IEEE) 1394, or other interface.

An audio input/output interface/device(s) 244 can be included to provide analog audio to an interconnected speaker or other device, and to receive analog audio input from a connected microphone or other device. As an example, the audio input/output interface/device(s) 244 may comprise an associated amplifier and analog to digital converter. Alternatively or in addition, the device 100 can include an integrated audio input/output device 256 and/or an audio jack for interconnecting an external speaker or microphone. For example, an integrated speaker and an integrated microphone can be provided, to support near talk or speaker phone operations.

Hardware buttons 158 can be included for example for use in connection with certain control operations. Examples include a master power switch, volume control, etc., as described in conjunction with FIGS. 1A through 1J. One or more image capture interfaces/devices 240, such as a camera, can be included for capturing still and/or video images. Alternatively or in addition, an image capture interface/device 240 can include a scanner or code reader. An image capture interface/device 240 can include or be associated with additional elements, such as a flash or other light source.

The device 100 can also include a global positioning system (GPS) receiver 236. In accordance with embodiments of the present invention, the GPS receiver 236 may further comprise a GPS module that is capable of providing absolute location information to other components of the device 100. An accelerometer(s) 176 may also be included. For example, in connection with the display of information to a user and/or other functions, a signal from the accelerometer 176 can be used to determine an orientation and/or format in which to display that information to the user.

Embodiments of the present invention can also include one or more position sensor(s) 172. The position sensor 172 can provide a signal indicating the position of the touch sensitive screens 104 and 108 relative to one another. This information can be provided as an input, for example to a user interface application, to determine an operating mode, characteristics of the touch sensitive displays 110, 114, and/or other device 100 operations. As examples, a screen position sensor 172 can comprise a series of Hall effect sensors, a multiple position switch, an optical switch, a Wheatstone bridge, a potentiometer, or other arrangement capable of providing a signal indicating of multiple relative positions the touch screens are in.

Communications between various components of the device 100 can be carried by one or more buses 222. In addition, power can be supplied to the components of the device 100 from a power source and/or power control module 260. The power control module 260 can, for example, include a battery, an AC to DC converter, power control logic, and/or ports for interconnecting the device 100 to an external source of power.

Device State:

FIGS. 3A and 3B represent illustrative states of device 100. While a number of illustrative states are shown, and transitions from a first state to a second state, it is to be appreciated that the illustrative state diagram may not encompass all possible states and/or all possible transitions from a first state to a second state. As illustrated in FIG. 3, the various arrows between the states (illustrated by the state represented in the circle) represent a physical change that occurs to the device 100, that is detected by one or more of hardware and software, the detection triggering one or more of a hardware and/or software interrupt that is used to control and/or manage one or more functions of device 100.

As illustrated in FIG. 3A, there are twelve exemplary “physical” states: closed 304, transition 308 (or opening transitional state), easel 312, modified easel 316, open 320, inbound/outbound call or communication 324, image/video capture 328, transition 332 (or closing transitional state), landscape 340, docked 336, docked 344 and landscape 348. Next to each illustrative state is a representation of the physical state of the device 100 with the exception of states 324 and 328, where the state is generally symbolized by the international icon for a telephone and the icon for a camera, respectfully.

In state 304, the device is in a closed state with the device 100 generally oriented in the portrait direction with the primary screen 104 and the secondary screen 108 back-to-back in different planes (see FIG. 1H). From the closed state, the device 100 can enter, for example, docked state 336, where the device 100 is coupled with a docking station, docking cable, or in general docked or associated with one or more other devices or peripherals, or the landscape state 340, where the device 100 is generally oriented with the primary screen 104 facing the user, and the primary screen 104 and the secondary screen 108 being back-to-back.

In the closed state, the device can also move to a transitional state where the device remains closed but the display is moved from one screen 104 to another screen 108 based on a user input, e.g., a double tap on the screen 110, 114. Still another embodiment includes a bilateral state. In the bilateral state, the device remains closed, but a single application displays at least one window on both the first display 110 and the second display 114. The windows shown on the first and second display 110, 114 may be the same or different based on the application and the state of that application. For example, while acquiring an image with a camera, the device may display the view finder on the first display 110 and displays a preview for the photo subjects (full screen and mirrored left-to-right) on the second display 114.

In state 308, a transition state from the closed state 304 to the semi-open state or easel state 312, the device 100 is shown opening with the primary screen 104 and the secondary screen 108 being rotated around a point of axis coincidence with the hinge. Upon entering the easel state 312, the primary screen 104 and the secondary screen 108 are separated from one another such that, for example, the device 100 can sit in an easel-like configuration on a surface.

In state 316, known as the modified easel position, the device 100 has the primary screen 104 and the secondary screen 108 in a similar relative relationship to one another as in the easel state 312, with the difference being one of the primary screen 104 or the secondary screen 108 are placed on a surface as shown.

State 320 is the open state where the primary screen 104 and the secondary screen 108 are generally on the same plane. From the open state, the device 100 can transition to the docked state 344 or the open landscape state 348. In the open state 320, the primary screen 104 and the secondary screen 108 are generally in the portrait-like orientation while in landscaped state 348 the primary screen 104 and the secondary screen 108 are generally in a landscape-like orientation.

State 324 is illustrative of a communication state, such as when an inbound or outbound call is being received or placed, respectively, by the device 100. While not illustrated for clarity, it should be appreciated the device 100 can transition to the inbound/outbound call state 324 from any state illustrated in FIG. 3. In a similar manner, the image/video capture state 328 can be entered into from any other state in FIG. 3, with the image/video capture state 328 allowing the device 100 to take one or more images via a camera and/or videos with a video capture device 240.

Transition state 332 illustratively shows primary screen 104 and the secondary screen 108 being closed upon one another for entry into, for example, the closed state 304.

FIG. 3B illustrates, with reference to the key, the inputs that are received to detect a transition from a first state to a second state. In FIG. 3B, various combinations of states are shown with in general, a portion of the columns being directed toward a portrait state 352, a landscape state 356, and a portion of the rows being directed to portrait state 360 and landscape state 364.

In FIG. 3B, the Key indicates that “H” represents an input from one or more Hall Effect sensors, “A” represents an input from one or more accelerometers, “T” represents an input from a timer, “P” represents a communications trigger input and “I” represents an image and/or video capture request input. Thus, in the center portion 376 of the chart, an input, or combination of inputs, are shown that represent how the device 100 detects a transition from a first physical state to a second physical state.

As discussed, in the center portion of the chart 376, the inputs that are received enable the detection of a transition from, for example, a portrait open state to a landscape easel state—shown in bold—“HAT.” For this exemplary transition from the portrait open to the landscape easel state, a Hall Effect sensor (“H”), an accelerometer (“A”) and a timer (“T”) input may be needed. The timer input can be derived from, for example, a clock associated with the processor.

In addition to the portrait and landscape states, a docked state 368 is also shown that is triggered based on the receipt of a docking signal 372. As discussed above and in relation to FIG. 3, the docking signal can be triggered by the association of the device 100 with one or more other device 100 s, accessories, peripherals, smart docks, or the like.

User Interaction:

FIGS. 4A through 4H depict various graphical representations of gesture inputs that may be recognized by the screens 104, 108. The gestures may be performed not only by a user's body part, such as a digit, but also by other devices, such as a stylus, that may be sensed by the contact sensing portion(s) of a screen 104, 108. In general, gestures are interpreted differently, based on where the gestures are performed (either directly on the display 110, 114 or in the gesture capture region 120, 124). For example, gestures in the display 110,114 may be directed to a desktop or application, and gestures in the gesture capture region 120, 124 may be interpreted as for the system.

With reference to FIGS. 4A-4H, a first type of gesture, a touch gesture 420, is substantially stationary on the screen 104,108 for a selected length of time. A circle 428 represents a touch or other contact type received at particular location of a contact sensing portion of the screen. The circle 428 may include a border 432, the thickness of which indicates a length of time that the contact is held substantially stationary at the contact location. For instance, a tap 420 (or short press) has a thinner border 432 a than the border 432 b for a long press 424 (or for a normal press). The long press 424 may involve a contact that remains substantially stationary on the screen for longer time period than that of a tap 420. As will be appreciated, differently defined gestures may be registered depending upon the length of time that the touch remains stationary prior to contact cessation or movement on the screen.

With reference to FIG. 4C, a drag gesture 400 on the screen 104,108 is an initial contact (represented by circle 428) with contact movement 436 in a selected direction. The initial contact 428 may remain stationary on the screen 104,108 for a certain amount of time represented by the border 432. The drag gesture typically requires the user to contact an icon, window, or other displayed image at a first location followed by movement of the contact in a drag direction to a new second location desired for the selected displayed image. The contact movement need not be in a straight line but have any path of movement so long as the contact is substantially continuous from the first to the second locations.

With reference to FIG. 4D, a flick gesture 404 on the screen 104,108 is an initial contact (represented by circle 428) with truncated contact movement 436 (relative to a drag gesture) in a selected direction. In embodiments, a flick has a higher exit velocity for the last movement in the gesture compared to the drag gesture. The flick gesture can, for instance, be a finger snap following initial contact. Compared to a drag gesture, a flick gesture generally does not require continual contact with the screen 104,108 from the first location of a displayed image to a predetermined second location. The contacted displayed image is moved by the flick gesture in the direction of the flick gesture to the predetermined second location. Although both gestures commonly can move a displayed image from a first location to a second location, the temporal duration and distance of travel of the contact on the screen is generally less for a flick than for a drag gesture.

With reference to FIG. 4E, a pinch gesture 408 on the screen 104,108 is depicted. The pinch gesture 408 may be initiated by a first contact 428 a to the screen 104,108 by, for example, a first digit and a second contact 428 b to the screen 104,108 by, for example, a second digit. The first and second contacts 428 a,b may be detected by a common contact sensing portion of a common screen 104,108, by different contact sensing portions of a common screen 104 or 108, or by different contact sensing portions of different screens. The first contact 428 a is held for a first amount of time, as represented by the border 432 a, and the second contact 428 b is held for a second amount of time, as represented by the border 432 b. The first and second amounts of time are generally substantially the same, and the first and second contacts 428 a, b generally occur substantially simultaneously. The first and second contacts 428 a, b generally also include corresponding first and second contact movements 436 a, b, respectively. The first and second contact movements 436 a, b are generally in opposing directions. Stated another way, the first contact movement 436 a is towards the second contact 436 b, and the second contact movement 436 b is towards the first contact 436 a. More simply stated, the pinch gesture 408 may be accomplished by a user's digits touching the screen 104,108 in a pinching motion.

With reference to FIG. 4F, a spread gesture 410 on the screen 104,108 is depicted. The spread gesture 410 may be initiated by a first contact 428 a to the screen 104,108 by, for example, a first digit and a second contact 428 b to the screen 104,108 by, for example, a second digit. The first and second contacts 428 a,b may be detected by a common contact sensing portion of a common screen 104,108, by different contact sensing portions of a common screen 104,108, or by different contact sensing portions of different screens. The first contact 428 a is held for a first amount of time, as represented by the border 432 a, and the second contact 428 b is held for a second amount of time, as represented by the border 432 b. The first and second amounts of time are generally substantially the same, and the first and second contacts 428 a, b generally occur substantially simultaneously. The first and second contacts 428 a, b generally also include corresponding first and second contact movements 436 a, b, respectively. The first and second contact movements 436 a, b are generally in a common direction. Stated another way, the first and second contact movements 436 a, b are away from the first and second contacts 428 a, b. More simply stated, the spread gesture 410 may be accomplished by a user's digits touching the screen 104,108 in a spreading motion.

The above gestures may be combined in any manner, such as those shown by FIGS. 4G and 4H, to produce a determined functional result. For example, in FIG. 4G a tap gesture 420 is combined with a drag or flick gesture 412 in a direction away from the tap gesture 420. In FIG. 4H, a tap gesture 420 is combined with a drag or flick gesture 412 in a direction towards the tap gesture 420.

The functional result of receiving a gesture can vary depending on a number of factors, including a state of the device 100, display 110, 114, or screen 104, 108, a context associated with the gesture, or sensed location of the gesture. The state of the device commonly refers to one or more of a configuration of the device 100, a display orientation, and user and other inputs received by the device 100. Context commonly refers to one or more of the particular application(s) selected by the gesture and the portion(s) of the application currently executing, whether the application is a single- or multi-screen application, and whether the application is a multi-screen application displaying one or more windows in one or more screens or in one or more stacks. Sensed location of the gesture commonly refers to whether the sensed set(s) of gesture location coordinates are on a touch sensitive display 110, 114 or a gesture capture region 120, 124, whether the sensed set(s) of gesture location coordinates are associated with a common or different display or screen 104,108, and/or what portion of the gesture capture region contains the sensed set(s) of gesture location coordinates.

A tap, when received by an a touch sensitive display 110, 114, can be used, for instance, to select an icon to initiate or terminate execution of a corresponding application, to maximize or minimize a window, to reorder windows in a stack, and to provide user input such as by keyboard display or other displayed image. A drag, when received by a touch sensitive display 110, 114, can be used, for instance, to relocate an icon or window to a desired location within a display, to reorder a stack on a display, or to span both displays (such that the selected window occupies a portion of each display simultaneously). A flick, when received by a touch sensitive display 110, 114 or a gesture capture region 120, 124, can be used to relocate a window from a first display to a second display or to span both displays (such that the selected window occupies a portion of each display simultaneously). Unlike the drag gesture, however, the flick gesture is generally not used to move the displayed image to a specific user-selected location but to a default location that is not configurable by the user.

The pinch gesture, when received by a touch sensitive display 110, 114 or a gesture capture region 120, 124, can be used to maximize or otherwise increase the displayed area or size of a window (typically when received entirely by a common display), to switch windows displayed at the top of the stack on each display to the top of the stack of the other display (typically when received by different displays or screens), or to display an application manager (a “pop-up window” that displays the windows in the stack). The spread gesture, when received by a touch sensitive display 110, 114 or a gesture capture region 120, 124, can be used to minimize or otherwise decrease the displayed area or size of a window, to switch windows displayed at the top of the stack on each display to the top of the stack of the other display (typically when received by different displays or screens), or to display an application manager (typically when received by an off-screen gesture capture region on the same or different screens).

The combined gestures of FIG. 4G, when received by a common display capture region in a common display or screen 104,108, can be used to hold a first window stack location in a first stack constant for a display receiving the gesture while reordering a second window stack location in a second window stack to include a window in the display receiving the gesture. The combined gestures of FIG. 4H, when received by different display capture regions in a common display or screen 104,108 or in different displays or screens, can be used to hold a first window stack location in a first window stack constant for a display receiving the tap part of the gesture while reordering a second window stack location in a second window stack to include a window in the display receiving the flick or drag gesture. Although specific gestures and gesture capture regions in the preceding examples have been associated with corresponding sets of functional results, it is to be appreciated that these associations can be redefined in any manner to produce differing associations between gestures and/or gesture capture regions and/or functional results.

Firmware and Software:

The memory 508 may store and the processor 504 may execute one or more software components. These components can include at least one operating system (OS) 516 a and/or 516 b, a framework 520, and/or one or more applications 564 a and/or 564 b from an application store 560. The processor 504 may receive inputs from drivers 512, previously described in conjunction with FIG. 2. The OS 516 can be any software, consisting of programs and data, that manages computer hardware resources and provides common services for the execution of various applications 564. The OS 516 can be any operating system and, at least in some embodiments, dedicated to mobile devices, including, but not limited to, Linux, ANDROID™, iPhone OS (IOS™), WINDOWS PHONE 7 ™, etc. The OS 516 is operable to provide functionality to the phone by executing one or more operations, as described herein.

The applications 564 can be any higher level software that executes particular functionality for the user. Applications 564 can include programs such as email clients, web browsers, texting applications, games, media players, office suites, etc. The applications 564 can be stored in an application store 560, which may represent any memory or data storage, and the management software associated therewith, for storing the applications 564. Once executed, the applications 564 may be run in a different area of memory 508.

The framework 520 may be any software or data that allows the multiple tasks running on the device to interact. In embodiments, at least portions of the framework 520 and the discrete components described hereinafter may be considered part of the OS 516 or an application 564. However, these portions will be described as part of the framework 520, but those components are not so limited. The framework 520 can include, but is not limited to, a Multi-Display Management (MDM) module 524, a Surface Cache module 528, a Window Management module 532, an Input Management module 536, a Task Management module 540, a Display Controller, one or more frame buffers 548, a task stack 552, one or more window stacks 550 (which is a logical arrangement of windows and/or desktops in a display area), and/or an event buffer 556.

The MDM module 524 includes one or more modules that are operable to manage the display of applications or other data on the screens of the device. An embodiment of the MDM module 524 is described in conjunction with FIG. 5B. In embodiments, the MDM module 524 receives inputs from the OS 516, the drivers 512 and the applications 564. The inputs assist the MDM module 524 in determining how to configure and allocate the displays according to the application's preferences and requirements, and the user's actions. Once a determination for display configurations is determined, the MDM module 524 can bind the applications 564 to a display configuration. The configuration may then be provided to one or more other components to generate the display.

The Surface Cache module 528 includes any memory or storage and the software associated therewith to store or cache one or more images from the display screens. Each display screen may have associated with the screen a series of active and non-active windows (or other display objects (such as a desktop display)). The active window (or other display object) is currently being displayed. The non-active windows (or other display objects) were opened and/or at some time displayed but are now “behind” the active window (or other display object). To enhance the user experience, before being covered by another active window (or other display object), a “screen shot” of a last generated image of the window (or other display object) can be stored. The Surface Cache module 528 may be operable to store the last active image of a window (or other display object) not currently displayed. Thus, the Surface Cache module 528 stores the images of non-active windows (or other display objects) in a data store (not shown).

In embodiments, the Window Management module 532 is operable to manage the windows (or other display objects) that are active or not active on each of the screens. The Window Management module 532, based on information from the MDM module 524, the OS 516, or other components, determines when a window (or other display object) is active or not active. The Window Management module 532 may then put a non-visible window (or other display object) in a “not active state” and, in conjunction with the Task Management module Task Management 540 suspend the application's operation. Further, the Window Management module 532 may assign a screen identifier to the window (or other display object) or manage one or more other items of data associated with the window (or other display object). The Window Management module 532 may also provide the stored information to the application 564, the Task Management module 540, or other components interacting with or associated with the window (or other display object).

The Input Management module 536 is operable to manage events that occur with the device. An event is any input into the window environment, for example, a user interface interactions with a user. The Input Management module 536 receives the events and logically stores the events in an event buffer 556. Events can include such user interface interactions as a “down event,” which occurs when a screen 104, 108 receives a touch signal from a user, a “move event,” which occurs when the screen 104, 108 determines that a user's finger is moving across a screen(s), an “up event, which occurs when the screen 104, 108 determines that the user has stopped touching the screen 104, 108, etc. These events are received, stored, and forwarded to other modules by the Input Management module 536.

A task can be an application component that provides a screen with which users can interact in order to do something, such as dial the phone, take a photo, send an email, or view a map. Each task may be given a window in which to draw a user interface. The window typically fills the display 110,114, but may be smaller than the display 110,114 and float on top of other windows. An application usually consists of multiple activities that are loosely bound to each other. Typically, one task in an application is specified as the “main” task, which is presented to the user when launching the application for the first time. Each task can then start another task to perform different actions.

The Task Management module 540 is operable to manage the operation of the one or more applications 564 that may be executed by the device. Thus, the Task Management module 540 can receive signals to execute an application stored in the application store 560. The Task Management module 540 may then instantiate one or more tasks or components of the application 564 to begin operation of the application 564. Further, the Task Management module 540 may suspend the application 564 based on user interface changes. Suspending the application 564 may maintain application data in memory but may limit or stop access to processor cycles for the application 564. Once the application becomes active again, the Task Management module 540 can again provide access to the processor.

The Display Controller 544 is operable to render and output the display(s) for the multi-screen device. In embodiments, the Display Controller 544 creates and/or manages one or more frame buffers 548. A frame buffer 548 can be a display output that drives a display from a portion of memory containing a complete frame of display data. In embodiments, the Display Controller 544 manages one or more frame buffers. One frame buffer may be a composite frame buffer that can represent the entire display space of both screens. This composite frame buffer can appear as a single frame to the OS 516. The Display Controller 544 can sub-divide this composite frame buffer as required for use by each of the displays 110, 114. Thus, by using the Display Controller 544, the device 100 can have multiple screen displays without changing the underlying software of the OS 516.

The Application Manager 562 can be a service that provides the presentation layer for the window environment. Thus, the Application Manager 562 provides the graphical model for rendering by the Window Management Module 556. Likewise, the Desktop 566 provides the presentation layer for the Application Store 560. Thus, the desktop provides a graphical model of a surface having selectable application icons for the Applications 564 in the Application Store 560 that can be provided to the Window Management Module 556 for rendering.

An embodiment of the MDM module 524 is shown in FIG. 5B. The MDM module 524 is operable to determine the state of the environment for the device, including, but not limited to, the orientation of the device, what applications 564 are executing, how the applications 564 are to be displayed, what actions the user is conducting, the tasks being displayed, etc. To configure the display, the MDM module 524 interprets these environmental factors and determines a display configuration, as described in conjunction with FIGS. 6A-6J. Then, the MDM module 524 can bind the applications 564 or other device components to the displays. The configuration may then be sent to the Display Controller 544 and/or the OS 516 to generate the display. The MDM module 524 can include one or more of, but is not limited to, a Display Configuration Module 568, a Preferences Module 572, a Device State Module 574, a Gesture Module 576, a Requirements Module 580, an Event Module 584, and/or a Binding Module 588.

The Display Configuration Module 568 determines the layout for the display. In embodiments, the Display Configuration Module 568 can determine the environmental factors. The environmental factors may be received from one or more other MDM module 524 modules or from other sources. The Display Configuration Module 568 can then determine from the list of factors the best configuration for the display. Some embodiments of the possible configurations and the factors associated therewith are described in conjunction with FIGS. 6A-6F.

The Preferences Module 572 is operable to determine display preferences for an application 564 or other component. For example, an application can have a preference for Single or Dual displays. The Preferences Module 572 can determine or receive the application preferences and store the preferences. As the configuration of the device changes, the preferences may be reviewed to determine if a better display configuration can be achieved for the application 564.

The Device State Module 574 is operable to determine or receive the state of the device. The state of the device can be as described in conjunction with FIGS. 3A and 3B. The state of the device can be used by the Display Configuration Module 568 to determine the configuration for the display. As such, the Device State Module 574 may receive inputs and interpret the state of the device. The state information is then provided to the Display Configuration Module 568.

The Gesture Module 576 is operable to determine if the user is conducting any actions on the user interface. Thus, the Gesture Module 576 can receive task information either from the task stack 552 or the Input Management module 536. These gestures may be as defined in conjunction with FIGS. 4A through 4H. For example, moving a window causes the display to render a series of display frames that illustrate the window moving. The gesture associated with such user interface interaction can be received and interpreted by the Gesture Module 576. The information about the user gesture is then sent to the Task Management Module 540 to modify the display binding of the task.

The Requirements Module 580, similar to the Preferences Module 572, is operable to determine display requirements for an application 564 or other component. An application can have a set display requirement that must be observed. Some applications require a particular display orientation. For example, the application “Angry Birds” can only be displayed in landscape orientation. This type of display requirement can be determined or received, by the Requirements Module 580. As the orientation of the device changes, the Requirements Module 580 can reassert the display requirements for the application 564. The Display Configuration Module 568 can generate a display configuration that is in accordance with the application display requirements, as provided by the Requirements Module 580.

The Event Module 584, similar to the Gesture Module 576, is operable to determine one or more events occurring with an application or other component that can affect the user interface. Thus, the Gesture Module 576 can receive event information either from the event buffer 556 or the Task Management module 540. These events can change how the tasks are bound to the displays. For example, an email application receiving an email can cause the display to render the new message in a secondary screen. The events associated with such application execution can be received and interpreted by the Event Module 584. The information about the events then may be sent to the Display Configuration Module 568 to modify the configuration of the display.

The Binding Module 588 is operable to bind the applications 564 or the other components to the configuration determined by the Display Configuration Module 568. A binding associates, in memory, the display configuration for each application with the display and mode of the application. Thus, the Binding Module 588 can associate an application with a display configuration for the application (e.g. landscape, portrait, multi-screen, etc.). Then, the Binding Module 588 may assign a display identifier to the display. The display identifier associated the application with a particular screen of the device. This binding is then stored and provided to the Display Controller 544, the OS 516, or other components to properly render the display. The binding is dynamic and can change or be updated based on configuration changes associated with events, gestures, state changes, application preferences or requirements, etc.

User Interface Configurations:

With reference now to FIGS. 6A-J, various types of output configurations made possible by the device 100 will be described hereinafter.

FIGS. 6A and 6B depict two different output configurations of the device 100 being in a first state. Specifically, FIG. 6A depicts the device 100 being in a closed portrait state 304 where the data is displayed on the primary screen 104. In this example, the device 100 displays data via the touch sensitive display 110 in a first portrait configuration 604. As can be appreciated, the first portrait configuration 604 may only display a desktop or operating system home screen. Alternatively, one or more windows may be presented in a portrait orientation while the device 100 is displaying data in the first portrait configuration 604.

FIG. 6B depicts the device 100 still being in the closed portrait state 304, but instead data is displayed on the secondary screen 108. In this example, the device 100 displays data via the touch sensitive display 114 in a second portrait configuration 608.

It may be possible to display similar or different data in either the first or second portrait configuration 604, 608. It may also be possible to transition between the first portrait configuration 604 and second portrait configuration 608 by providing the device 100 a user gesture (e.g., a double tap gesture), a menu selection, or other means. Other suitable gestures may also be employed to transition between configurations. Furthermore, it may also be possible to transition the device 100 from the first or second portrait configuration 604, 608 to any other configuration described herein depending upon which state the device 100 is moved.

An alternative output configuration may be accommodated by the device 100 being in a second state. Specifically, FIG. 6C depicts a third portrait configuration where data is displayed simultaneously on both the primary screen 104 and the secondary screen 108. The third portrait configuration may be referred to as a Dual-Portrait (PD) output configuration. In the PD output configuration, the touch sensitive display 110 of the primary screen 104 depicts data in the first portrait configuration 604 while the touch sensitive display 114 of the secondary screen 108 depicts data in the second portrait configuration 608. The simultaneous presentation of the first portrait configuration 604 and the second portrait configuration 608 may occur when the device 100 is in an open portrait state 320. In this configuration, the device 100 may display one application window in one display 110 or 114, two application windows (one in each display 110 and 114), one application window and one desktop, or one desktop. Other configurations may be possible. It should be appreciated that it may also be possible to transition the device 100 from the simultaneous display of configurations 604, 608 to any other configuration described herein depending upon which state the device 100 is moved. Furthermore, while in this state, an application's display preference may place the device into bilateral mode, in which both displays are active to display different windows in the same application. For example, a Camera application may display a viewfinder and controls on one side, while the other side displays a mirrored preview that can be seen by the photo subjects. Games involving simultaneous play by two players may also take advantage of bilateral mode.

FIGS. 6D and 6E depicts two further output configurations of the device 100 being in a third state. Specifically, FIG. 6D depicts the device 100 being in a closed landscape state 340 where the data is displayed on the primary screen 104. In this example, the device 100 displays data via the touch sensitive display 110 in a first landscape configuration 612. Much like the other configurations described herein, the first landscape configuration 612 may display a desktop, a home screen, one or more windows displaying application data, or the like.

FIG. 6E depicts the device 100 still being in the closed landscape state 340, but instead data is displayed on the secondary screen 108. In this example, the device 100 displays data via the touch sensitive display 114 in a second landscape configuration 616. It may be possible to display similar or different data in either the first or second portrait configuration 612, 616. It may also be possible to transition between the first landscape configuration 612 and second landscape configuration 616 by providing the device 100 with one or both of a twist and tap gesture or a flip and slide gesture. Other suitable gestures may also be employed to transition between configurations. Furthermore, it may also be possible to transition the device 100 from the first or second landscape configuration 612, 616 to any other configuration described herein depending upon which state the device 100 is moved.

FIG. 6F depicts a third landscape configuration where data is displayed simultaneously on both the primary screen 104 and the secondary screen 108. The third landscape configuration may be referred to as a Dual-Landscape (LD) output configuration. In the LD output configuration, the touch sensitive display 110 of the primary screen 104 depicts data in the first landscape configuration 612 while the touch sensitive display 114 of the secondary screen 108 depicts data in the second landscape configuration 616. The simultaneous presentation of the first landscape configuration 612 and the second landscape configuration 616 may occur when the device 100 is in an open landscape state 340. It should be appreciated that it may also be possible to transition the device 100 from the simultaneous display of configurations 612, 616 to any other configuration described herein depending upon which state the device 100 is moved.

FIGS. 6G and 6H depict two views of a device 100 being in yet another state. Specifically, the device 100 is depicted as being in an easel state 312. FIG. 6G shows that a first easel output configuration 618 may be displayed on the touch sensitive display 110. FIG. 6H shows that a second easel output configuration 620 may be displayed on the touch sensitive display 114. The device 100 may be configured to depict either the first easel output configuration 618 or the second easel output configuration 620 individually. Alternatively, both the easel output configurations 618, 620 may be presented simultaneously. In some embodiments, the easel output configurations 618, 620 may be similar or identical to the landscape output configurations 612, 616. The device 100 may also be configured to display one or both of the easel output configurations 618, 620 while in a modified easel state 316. It should be appreciated that simultaneous utilization of the easel output configurations 618, 620 may facilitate two-person games (e.g., Battleship®, chess, checkers, etc.), multi-user conferences where two or more users share the same device 100, and other applications. As can be appreciated, it may also be possible to transition the device 100 from the display of one or both configurations 618, 620 to any other configuration described herein depending upon which state the device 100 is moved.

FIG. 6I depicts yet another output configuration that may be accommodated while the device 100 is in an open portrait state 320. Specifically, the device 100 may be configured to present a single continuous image across both touch sensitive displays 110, 114 in a portrait configuration referred to herein as a Portrait-Max (PMax) configuration 624. In this configuration, data (e.g., a single image, application, window, icon, video, etc.) may be split and displayed partially on one of the touch sensitive displays while the other portion of the data is displayed on the other touch sensitive display. The Pmax configuration 624 may facilitate a larger display and/or better resolution for displaying a particular image on the device 100. Similar to other output configurations, it may be possible to transition the device 100 from the Pmax configuration 624 to any other output configuration described herein depending upon which state the device 100 is moved.

FIG. 6J depicts still another output configuration that may be accommodated while the device 100 is in an open landscape state 348. Specifically, the device 100 may be configured to present a single continuous image across both touch sensitive displays 110, 114 in a landscape configuration referred to herein as a Landscape-Max (LMax) configuration 628. In this configuration, data (e.g., a single image, application, window, icon, video, etc.) may be split and displayed partially on one of the touch sensitive displays while the other portion of the data is displayed on the other touch sensitive display. The Lmax configuration 628 may facilitate a larger display and/or better resolution for displaying a particular image on the device 100. Similar to other output configurations, it may be possible to transition the device 100 from the Lmax configuration 628 to any other output configuration described herein depending upon which state the device 100 is moved.

The device 100 manages desktops and/or windows with at least one window stack 1700, 1728, as shown in FIGS. 17A and 17B. A window stack 1700, 1728 is a logical arrangement of active and/or inactive windows for a multi-screen device. For example, the window stack 1700, 1728 may be logically similar to a deck of cards, where one or more windows or desktops are arranged in order, as shown in FIGS. 17A and 17B. An active window is a window that is currently being displayed on at least one of the touch sensitive displays 110, 114. For example, windows 104 and 108 are active windows and are displayed on touch sensitive displays 110 and 114. An inactive window is a window that was opened and displayed but is now “behind” an active window and not being displayed. In embodiments, an inactive window may be for an application that is suspended, and thus, the window is not displaying active content. For example, windows 1712, 1716, 1720, and 1724 are inactive windows.

A window stack 1700, 1728 may have various arrangements or organizational structures. In the embodiment shown in FIG. 17A, the device 100 includes a first stack 1760 associated with a first touch sensitive display 110 and a second stack associated with a second touch sensitive display 114. Thus, each touch sensitive display 110, 114 can have an associated window stack 1760, 1764. These two window stacks 1760, 1764 may have different numbers of windows arranged in the respective stacks 1760, 1764. Further, the two window stacks 1760, 1764 can also be identified differently and managed separately. Thus, the first window stack 1760 can be arranged in order from a first window 1704 to a next window 1720 to a last window 1724 and finally to a desktop 1722, which, in embodiments, is at the “bottom” of the window stack 1760. In embodiments, the desktop 1722 is not always at the “bottom” as application windows can be arranged in the window stack below the desktop 1722, and the desktop 1722 can be brought to the “top” of a stack over other windows during a desktop reveal. Likewise, the second stack 1764 can be arranged from a first window 1708 to a next window 1712 to a last window 1716, and finally to a desktop 1718, which, in embodiments, is a single desktop area, with desktop 1722, under all the windows in both window stack 1760 and window stack 1764. A logical data structure for managing the two window stacks 1760, 1764 may be as described in conjunction with FIG. 18.

Another arrangement for a window stack 1728 is shown in FIG. 17B. In this embodiment, there is a single window stack 1728 for both touch sensitive displays 110, 114. Thus, the window stack 1728 is arranged from a desktop 1758 to a first window 1744 to a last window 1756. A window can be arranged in a position among all windows without an association to a specific touch sensitive display 110, 114. In this embodiment, a window is in the order of windows. Further, at least one window is identified as being active. For example, a single window may be rendered in two portions 1732 and 1736 that are displayed on the first touch sensitive screen 110 and the second touch sensitive screen 114. The single window may only occupy a single position in the window stack 1728 although it is displayed on both displays 110, 114.

Yet another arrangement of a window stack 1760 is shown in FIGS. 17C through 17E. The window stack 1760 is shown in three “elevation” views. In FIG. 17C, the top of the window stack 1760 is shown. Two sides of the window stack 1760 are shown in FIGS. 17D and 17E. In this embodiment, the window stack 1760 resembles a stack of bricks. The windows are stacked on each other. Looking from the top of the window stack 1760 in FIG. 17C, only the top most windows in the window stack 1760 are seen in different portions of the composite display 1764. The composite display 1764 represents a logical model for the entire display area of the device 100, which can include touch sensitive display 110 and touch sensitive display 114. A desktop 1786 or a window can occupy part or all of the composite display 1764.

In the embodiment shown, the desktop 1786 is the lowest display or “brick” in the window stack 1760. Thereupon, window 1 1782, window 2 1782, window 3 1768, and window 4 1770 are layered. Window 1 1782, window 3 1768, window 2 1782, and window 4 1770 only occupy a portion of the composite display 1764. Thus, another part of the stack 1760 includes window 8 1774 and windows 5 through 7 shown in section 1790. Only the top window in any portion of the composite display 1764 is actually rendered and displayed. Thus, as shown in the top view in FIG. 17C, window 4 1770, window 8 1774, and window 3 1768 are displayed as being at the top of the display in different portions of the window stack 1760. A window can be dimensioned to occupy only a portion of the composite display 1760 to “reveal” windows lower in the window stack 1760. For example, window 3 1768 is lower in the stack than both window 4 1770 and window 8 1774 but is still displayed. A logical data structure to manage the window stack can be as described in conjunction with FIG. 18.

When a new window is opened, the newly activated window is generally positioned at the top of the stack. However, where and how the window is positioned within the stack can be a function of the orientation of the device 100, the context of what programs, functions, software, etc. are being executed on the device 100, how the stack is positioned when the new window is opened, etc. To insert the window in the stack, the position in the stack for the window is determined and the touch sensitive display 110, 114 to which the window is associated may also be determined. With this information, a logical data structure for the window can be created and stored. When user interface or other events or tasks change the arrangement of windows, the window stack(s) can be changed to reflect the change in arrangement. It should be noted that these same concepts described above can be used to manage the one or more desktops for the device 100.

A logical data structure 1800 for managing the arrangement of windows or desktops in a window stack is shown in FIG. 18. The logical data structure 1800 can be any data structure used to store data whether an object, record, file, etc. The logical data structure 1800 can be stored in any type of database or data storage system, regardless of protocol or standard. In embodiments, the logical data structure 1800 includes one or more portions, fields, attributes, etc. that store data in a logical arrangement that allows for easy storage and retrieval of the information. Hereinafter, these one or more portions, fields, attributes, etc. shall be described simply as fields. The fields can store data for a window identifier 1804, dimensions 1808, a stack position identifier 1812, a display identifier 1816, and/or an active indicator 1820. Each window in a window stack can have an associated logical data structure 1800. While only a single logical data structure 1800 is shown in FIG. 18, there may be more or fewer logical data structures 1800 used with a window stack (based on the number of windows or desktops in the stack), as represented by ellipses 1824. Further, there may be more or fewer fields than those shown in FIG. 18, as represented by ellipses 1828.

A window identifier 1804 can include any identifier (ID) that uniquely identifies the associated window in relation to other windows in the window stack. The window identifier 1804 can be a globally unique identifier (GUID), a numeric ID, an alphanumeric ID, or other type of identifier. In embodiments, the window identifier 1804 can be one, two, or any number of digits based on the number of windows that can be opened. In alternative embodiments, the size of the window identifier 1804 may change based on the number of windows opened. While the window is open, the window identifier 1804 may be static and remain unchanged.

Dimensions 1808 can include dimensions for a window in the composite display 1760. For example, the dimensions 1808 can include coordinates for two or more corners of the window or may include one coordinate and dimensions for the width and height of the window. These dimensions 1808 can delineate what portion of the composite display 1760 the window may occupy, which may the entire composite display 1760 or only part of composite display 1760. For example, window 4 1770 may have dimensions 1880 that indicate that the window 1770 will occupy only part of the display area for composite display 1760, as shown in FIGS. 17C through 17E. As windows are moved or inserted in the window stack, the dimensions 1808 may change.

A stack position identifier 1812 can be any identifier that can identify the position in the stack for the window or may be inferred from the window's control record within a data structure, such as a list or a stack. The stack position identifier 1812 can be a GUID, a numeric ID, an alphanumeric ID, or other type of identifier. Each window or desktop can include a stack position identifier 1812. For example, as shown in FIG. 17A, window 1 1704 in stack 1 1760 can have a stack position identifier 1812 of 1 identifying that window 1704 is the first window in the stack 1760 and the active window. Similarly, window 6 1724 can have a stack position identifier 1812 of 3 representing that window 1724 is the third window in the stack 1760. Window 2 1708 can also have a stack position identifier 1812 of 1 representing that window 1708 is the first window in the second stack 1764. As shown in FIG. 17B, window 1 1744 can have a stack position identifier 1812 of 1, window 3, rendered in portions 1732 and 1736, can have a stack position identifier 1812 of 3, and window 6 1756 can have a stack position identifier 1812 of 6. Thus, depending on the type of stack, the stack position identifier 1812 can represent a window's location in the stack.

A display identifier 1816 can identify that the window or desktop is associated with a particular display, such as the first display 110 or the second display 114, or the composite display 1760 composed of both displays. While this display identifier 1816 may not be needed for a multi-stack system, as shown in FIG. 17A, the display identifier 1816 can indicate whether a window in the serial stack of FIG. 17B is displayed on a particular display. Thus, window 3 may have two portions 1732 and 1736 in FIG. 17B. The first portion 1732 may have a display identifier 1816 for the first display while the second portion 1736 may have a display identifier 1816 for the second display 114. However, in alternative embodiments, the window may have two display identifier 1816 that represent that the window is displayed on both of the displays 110, 114, or a display identifier 1816 identifying the composite display. In another alternate embodiment, the window may have a single display identifier 1816 to represent that the window is displayed on both of the displays 110, 114.

Similar to the display identifier 1816, an active indicator 1820 may not be needed with the dual stack system of FIG. 17A, as the window in stack position 1 is active and displayed. In the system of FIG. 17B, the active indicator 1820 can indicate which window(s) in the stack is being displayed. Thus, window 3 may have two portions 1732 and 1736 in FIG. 17. The first portion 1732 may have an active indicator 1820 while the second portion 1736 may also have an active indicator 1820. However, in alternative embodiments, window 3 may have a single active indicator 1820. The active indicator 1820 can be a simple flag or bit that represents that the window is active or displayed.

An embodiment of a method 1900 for creating a window stack is shown in FIG. 19. While a general order for the steps of the method 1900 is shown in FIG. 19. Generally, the method 1900 starts with a start operation 1904 and ends with an end operation 1928. The method 1900 can include more or fewer steps or can arrange the order of the steps differently than those shown in FIG. 19. The method 1900 can be executed as a set of computer-executable instructions executed by a computer system and encoded or stored on a computer readable medium. Hereinafter, the method 1900 shall be explained with reference to the systems, components, modules, software, data structures, user interfaces, etc. described in conjunction with FIGS. 1-18.

A multi-screen device 100 can receive activation of a window, in step 1908. In embodiments, the multi-screen device 100 can receive activation of a window by receiving an input from the touch sensitive display 110 or 114, the configurable area 112 or 116, a gesture capture region 120 or 124, or some other hardware sensor operable to receive user interface inputs. The processor may execute the Task Management Module 540 may receive the input. The Task Management Module 540 can interpret the input as requesting an application task to be executed that will open a window in the window stack.

In embodiments, the Task Management Module 540 places the user interface interaction in the task stack 552 to be acted upon by the Display Configuration Module 568 of the Multi-Display Management Module 524. Further, the Task Management Module 540 waits for information from the Multi-Display Management Module 524 to send instructions to the Window Management Module 532 to create the window in the window stack.

The Multi-Display Management Module 524, upon receiving instruction from the Task Management Module 540, determines to which touch portion of the composite display 1760, the newly activated window should be associated, in step 1912. For example, window 4 1770 is associated with the a portion of the composite display 1764 In embodiments, the device state module 574 of the Multi-Display Management Module 524 may determine how the device is oriented or in what state the device is in, e.g., open, closed, portrait, etc. Further, the preferences module 572 and/or requirements module 580 may determine how the window is to be displayed. The gesture module 576 may determine the user's intentions about how the window is to be opened based on the type of gesture and the location of where the gesture is made.

The Display Configuration Module 568 may use the input from these modules and evaluate the current window stack 1760 to determine the best place and the best dimensions, based on a visibility algorithm, to open the window. Thus, the Display Configuration Module 568 determines the best place to put the window at the top of the window stack 1760, in step 1916. The visibility algorithm, in embodiments, determines for all portions of the composite display, which windows are at the top of the stack. For example, the visibility algorithm determines that window 3 1768, window 4 1770, and window 8 1774 are at the top of the stack 1760 as viewed in FIGS. 17C through 17E. Upon determining where to open the window, the Display Configuration Module 568 can assign a display identifier 816 and possibly dimensions 808 to the window. The display identifier 816 and dimensions 808 can then be sent back to the Task Management Module 540. The Task Management Module 540 may then assign the window a stack position identifier 812 indicating the windows position at the top of the window stack.

In embodiments, the Task Management Module 540 sends the window stack information and instructions to render the window to the Window Management Module 532. The Window Management Module 532 and the Task Management Module 540 can create the logical data structure 800, in step 1924. Both the Task Management Module 540 and the Window Management Module 532 may create and manage copies of the window stack. These copies of the window stack can be synchronized or kept similar through communications between the Window Management Module 532 and the Task Management Module 540. Thus, the Window Management Module 532 and the Task Management Module 540, based on the information determined by the Multi-Display Management Module 524, can assign dimensions 808, a stack position identifier 812 (e.g., window 1 1782, window 4 1770, etc.), a display identifier 816 (e.g., touch sensitive display 1 110, touch sensitive display 2 114, composite display identifier, etc,), and an active indicator 820, which is generally always set when the window is at the “top” of the stack. The logical data structure 800 may then be stored by both the Window Management Module 532 and the Task Management Module 540. Further, the Window Management Module 532 and the Task Management Module 540 may thereinafter manage the window stack and the logical data structure(s) 800.

FIG. 20 depicts a further window stacking configuration. A plurality of windows 1, 2, 3, 4, 5, 6, 7, and 8, whether from the same or different multi-screen or single-screen applications, are depicted. The touch sensitive display 110 currently has window 4 in the active display position while touch sensitive display 114 currently has window 5 in the active display position. The stack for touch sensitive display 110, from top to bottom, has window 4 in the active display position and windows 3, 2, and 1 positioned behind it. The stack for touch sensitive display 114, from top to bottom, has window 5 in the active display position and windows 6, 7, and 8 positioned behind it.

The desktops D1, D2, D3, D4, D5, and D6 are positioned behind the window stacks. The desktops can be viewed as a desktop stack different from the window stack. Viewed in this manner, the touch sensitive display 110 has a corresponding desktop stack comprising desktops D3, D2, and D1, with desktop D1 being at the bottom 2300 stack position and with desktop D3 at the top stack position being capable of being displayed with window 4 (depending on the window position and size (whether maximized or minimized), and the touch sensitive display 114 has a corresponding desktop stack has a corresponding desktop stack comprising desktops D4, D5, and D6, with desktop D6 being at the bottom 2304 stack position and with desktop D4 at the top stack position being capable of being displayed with window 5 (depending on the window position and size (whether maximized or minimized). Conceptually, the desktops can be viewed as a canvas divided, in this example, into six sections of which two can be displayed, at any one time, the touch sensitive displays 110, 114. When the device 100 is in the closed state, this conceptual model, in one configuration, persists. In this configuration, only one window and desktop stacks can be seen (that corresponding to the primary screen) but the other window and desktop stacks are virtual; that is, they are maintained in memory but cannot be seen because the secondary screen is not enabled.

Various window navigation configurations will now be discussed with reference to FIGS. 7-12 and 15-16. The various configurations depict examples relating to navigating among independent or hierarchically related displayed images. In the various examples, middleware 520, particularly one or more of the Multi-Display Management (MDM) class 524, a Surface Cache class 528, a Window Management class 532, an Activity Management class 536, and an Application Management class 540, independently or collectively, detect a stimulus, such as receipt of user input, particularly user gestures (step 1400 of FIG. 14), determine a current state of the device 100, display 110, 114 or screen 104, 108 (such as a state of frame buffers 548, activity stack 552, and/or event buffer 556), a context associated with the stimulus, and/or a sensed location of a gesture (step 1404), map one or more rule sets to the user device state, display state, screen state, stimulus context, and/or sensed gesture location to determine an appropriate functional result to be performed, (step 1408), and perform or cause to be performed the functional result (step 1412).

Referring to FIGS. 8A-D, the primary and secondary touch sensitive displays 110 and 114 are in portrait display orientation and provide first and second desktops D1 and D2, respectively (FIG. 8A). The first and second desktops form an ordered set of desktops. The secondary screen 108 detects a user gesture on the touch sensitive display 114. In one example, the user gesture 700 is a drag and, in another example, the user gesture is a flick. As shown in FIG. 8B, the second desktop D2 has moved in the direction indicated to an active display position (such as in a respective frame buffer or stack) or state for the primary screen and is displayed by the touch sensitive display 110, and the first desktop D1 has moved from an active to an inactive display position for the primary screen. A third desktop D3 has moved from an inactive to an active display position for the secondary screen and is now displayed by the touch sensitive display 114. Commonly, only a drag beyond approximately one-half of a display's or screen's width is considered to be a successful desktop navigation operation.

As further shown in FIG. 8C, the secondary screen 108 detects a further user gesture on the touch sensitive display 114. As shown in FIG. 8D, the third desktop D3 has moved in the direction indicated to an active display position for the primary screen and is displayed by the touch sensitive display 110, and the second desktop D2 has moved from an active display position to an inactive position for the primary screen. A fourth desktop D4 has moved from an inactive to an active display position for the secondary screen and is now displayed by the touch sensitive display 114.

Although not shown, the user could use an opposing gesture sensed in the touch sensitive display 110 to move a desktop from left-to-right. For example, in FIG. 8B the user could use a drag or flick gesture 700, 704 in the touch sensitive display 110 to cause the first desktop D1 to move from an inactive display position to an active display position for the touch sensitive display 110, thereby causing the second desktop D2 to move to an active position for the touch sensitive display 114 and the third desktop D3 to move from an active to an inactive display position for the secondary screen.

In one configuration shown in FIGS. 7A-B, gestures received by a gesture capture region 120 or 124 do not allow navigation between desktops in a desktop stack. Stated another way, gestures received by a touch sensitive display enable navigation through an ordered set or stack of desktops but not through an ordered set or stack of windows. As discussed below, gestures received by a gesture capture region enable navigation through the ordered set or stack of windows but not through the ordered set or stack of desktops.

Although drag and flick gestures are depicted in FIG. 7-8, it is to be understood that only one gesture is required and that other gestures may be employed.

Unlike desktop navigation, gestures received by a gesture capture region 120 or 124 are used to move windows from one screen to the other (e.g., from one active or inactive position to another). As discussed below, this rule applies when the device 100 is in either the closed or opened state.

Referring now to FIGS. 9A-D, a (minimized) first window 1 is displayed by the touch sensitive display 110, and a second desktop D2 by the touch sensitive display 114. The first window 1 is minimized in that it is displayed by only one of the primary and secondary screens 104 and 108. In the examples discussed herein, the windows and desktops can be maintained in separate display stacks or ordered sets. In FIG. 9A, a gesture, such as a drag or flick gesture 700, 704 is received by a gesture capture region 120. In response and as shown in FIGS. 9B and 9C, the first window 1 moves in the direction indicated (as shown by the cross-thatched displayed image) from an active display position of the touch sensitive display 110 (and primary screen 104) to an active display position of the touch sensitive display 114 (and secondary screen 108). As shown by FIG. 9D, the first desktop D1 is uncovered by the first window 1 and moves from an inactive to an active display position of the touch sensitive display 110 (and primary screen 104), and the second desktop D2 is now covered by the first window 1 and moves from an active to an inactive display position for the secondary screen. The second desktop D2 could be returned to an active display position for the secondary screen by providing an opposing user gesture to the gesture capture region 124. This would return the first window 1 to the active display position of the primary screen, as shown in FIG. 9A.

In one configuration, a well is displayed ahead of the window as the window moves from the touch sensitive display 110 to touch sensitive display 114. The well is a displayed image that is unable to receive user input or provide output to the user. It typically, though not necessarily, is a substantially solid colored displayed image. The well expands or slides from behind the window and moves towards the target touch sensitive display. When and as the well expands or moves, a seam 800 between the first and second touch sensitive displays and their respective display images is dimmed out completely to reveal the well background. When the well has moved and occupies fully the target touch sensitive display (in this example touch sensitive display 114) so that the prior display image is completely dimmed out or covered by the well (the prior display image is, in the example, the second desktop 114), the first window 1 moves over to occupy the target touch sensitive display. Until that time, the first window 1 remains as the displayed image for the source touch sensitive display (in this example touch sensitive display 110). The well is an affordance generally used for multi-screen applications and not for single-screen applications.

Referring to FIGS. 10A-C, window navigation when the device 100 is in the closed state is depicted. In the following examples, an object stack includes first, second, and third windows 1, 2, 3. In FIG. 10A, the touch sensitive display 110 for the primary screen displays the first window 1. A gesture, shown as a drag 700 (though a flick 704 could be used), is received by the gesture capture region 120 for the primary screen 104. The gesture causes the window 1 to move to an inactive display position and the window 2 to move to an active display position on touch sensitive display 110.

With reference to FIG. 10B, the touch sensitive display 110 for the primary screen displays the second window 2. A gesture, shown as a drag 700 (though a flick 704 could be used), is received by the gesture capture region 120 for the primary screen 104. In response, the second window 2 moves in the direction indicated, causing the third window 3 to move into the active display position in the window stack, whereby the touch sensitive display 110 now displays the third window 3.

In FIG. 10C, the touch sensitive display 110 for the primary screen displays the third window 3. A gesture, shown as a drag 700 (though a flick 704 could be used), is received by the gesture capture region 120 for the primary screen 104 (not shown). The user, by the gesture, attempts to move “beyond” the object stack for the primary screen 104. The gesture causes the third window 3 (or a desktop at an end of the stack) to move partially off screen (to the left) followed by a rapid return, such as by a snap or rubber-band effect, to the primary display 104. This result communicates to the user that the window (or desktop) cannot be moved in the indicated direction as the end of the object stack has been reached. A similar result would have been realized in FIG. 10A had the drag gesture 700 been in the opposite direction.

Referring to FIGS. 11A-C, window navigation when the device 100 is in the open state is depicted. In the following examples, an object stack shown for the sake of simplicity as being common to both touch sensitive displays 110, 114 includes first desktop D1, (minimized) first and second windows 1, 2, and second desktop D2. In FIG. 11A, the touch sensitive display 110 for the primary screen displays the first desktop D1, and the touch sensitive display 114 for the primary screen displays the first window 1. A gesture, shown as a drag 700 (though a flick 704 could be used), is received by the gesture capture region 124 for the secondary screen 108 (or by the gesture capture region 120 for the primary screen 104). Referring to FIG. 11B, the gesture causes the first window 1 to move in the direction indicated, causing the first window 1 to move from the active display position for the secondary screen 108 to the active display position for the primary screen 104 and the first desktop D1 to an inactive display position for the primary screen 104. The second window 2 has moved from an inactive display position into the active display position for the secondary screen 108, whereby the touch sensitive display 114 now displays the second window 2.

With further reference to FIG. 11B, the gesture capture region 124 (or the gesture capture region 120 for the primary screen 104) receives a further gesture from the user, depicted as a drag gesture 700 (though a flick gesture 704 could be employed). Referring to FIG. 11C, the gesture causes the second window 2 to move in the direction indicated, causing the second window 2 to move into the active display position for the primary screen 104 and the first window 1 to an inactive display position for the primary screen 104. The second desktop D2 has moved from an inactive display position into the active display position for the secondary screen 108, whereby the touch sensitive display 114 now displays the second desktop D2.

In FIG. 11C, a gesture, shown as a drag 700 (though a flick 704 could be used), is received by the gesture capture region 124 for the primary screen 104 (or by the gesture capture region 120 for the primary screen 104). The user, by the gesture, attempts to move “beyond” the stack for the secondary screen 108. The gesture causes the second desktop 2 to move partially off screen (to the left) followed by a rapid return, such as by a snap or rubber-band effect, to the secondary screen 108. This result communicates to the user that the windows cannot be moved in the indicated direction as the end of the stack has been reached.

In the examples above, a gesture in the opposing direction would cause an opposite result. For example, in FIG. 11B, a drag in the opposite direction would cause the touch sensitive display 110 of the primary screen to display the second window 2, and the touch sensitive display 114 of the primary screen to display the second desktop D2.

In the examples above, it is to be understood that one or more other gesture(s) may accomplish the same functional result. The mapping of specific gestures to produce a specified result may be varied to produce a virtually endless array of possible relationships.

Navigation in landscape display orientation is, in one configuration, similar to navigating in portrait display orientation. One difference is the orientation of the displayed image stack, which may be oriented clockwise or counter-clockwise, depending on the direction of rotation of the device 100. Referring to FIGS. 16A-B, the device 100 is open and the primary and secondary touch sensitive displays 110 and 114 are in landscape display orientation and provide first and second desktops D1 and D2, respectively (FIG. 16A). The first and second desktops form an ordered set of desktops. The secondary screen 108 (or primary screen 104) detects a user gesture on the touch sensitive display 114. In one example, the user gesture 700 is a drag and, in another example, the user gesture is a flick. As shown in FIG. 16B, the second desktop D2 has moved in the direction indicated to an active display position (such as in a respective frame buffer or stack) or state for the primary screen and is displayed by the touch sensitive display 110, and the first desktop D1 has moved from an active to an inactive display position for the primary screen. A third desktop D3 has moved from an inactive to an active display position for the secondary screen and is now displayed by the touch sensitive display 114. Commonly, only a drag beyond approximately one-half of a display's or screen's height is considered to be a successful desktop navigation operation.

As further shown in FIG. 16B, the secondary screen 108 (or primary screen 104) detects a further user gesture on the touch sensitive display 114. As shown in FIG. 16C, the third desktop D3 has moved in the direction indicated to an active display position for the primary screen and is displayed by the touch sensitive display 110, and the second desktop D2 has moved from an active display position to an inactive position in a for the primary screen. A fourth desktop D4 has moved from an inactive to an active display position for the secondary screen and is now displayed by the touch sensitive display 114.

Although not shown, the user could use an opposing gesture sensed in the touch sensitive display 110 to move a desktop from top-to-bottom. For example, in FIG. 16B the user could use a downward drag or flick gesture 700, 704 in the touch sensitive display 110 to cause the first desktop D1 to move from an inactive display position to an active display position for the touch sensitive display 110, thereby causing the second desktop D2 to move to an active position for the touch sensitive display 114 and the third desktop D3 to move from an active to an inactive display position for the secondary screen.

A further example will be discussed with reference to FIGS. 12A-B. The object stack includes first and second windows 1, 2. First and second windows 1, 2 are controlled by different single-screen applications. In other configurations, the first and second windows are controlled by a common multi-screen application or by different multi-screen and single-screen applications. In FIG. 12A, the primary screen 104 displays the first desktop D1, and the secondary screen 108 displays first window 1. A drag (or flick) gesture is received by the gesture capture region 120 or 124. In response and as shown in FIG. 12B, the primary screen 104 now displays the first window 1, and the secondary screen 108 now displays the second window 2. Stated another way, the first and second desktops D2 and D3 are in inactive display positions while the first and second windows are in active display positions.

Referring to FIGS. 15A-C, window navigation when the device 100 is in the closed state and landscape display orientation is depicted. In the following examples, the object stack includes first, second, and third windows 1, 2, 3. First, second, and third windows 1, 2, 3 are controlled by different single-screen applications. In other configurations, the first, second, and third windows are controlled by a common multi-screen application or by different multi-screen and single-screen applications. In FIG. 15A, the touch sensitive display 110 for the primary screen displays the first window 1. A gesture, shown as an upward drag 700 (though an upward flick 704 could be used), is received by the gesture capture region 120 for the primary screen 104. The gesture causes the window 1 to move to an inactive display position and window 2, the next window in the stack, to move to an active display position.

With reference to FIG. 15B, the touch sensitive display 110 for the primary screen now displays the second window 2. A gesture, shown as an upward drag 700 (though an upward flick 704 could be used), is received by the gesture capture region 120 for the primary screen 104. In response, the second window 2 moves in the direction indicated to an inactive display position, causing the third window 3 to move into the active display position in the window stack, whereby the touch sensitive display 110 now displays the third window 3 (FIG. 15C).

In FIG. 15C, a further gesture, particularly an upward drag 700 or flick 704, received by the gesture capture region 120 for the primary screen 104 would attempt to move “beyond” the object stack for the primary screen 104. The gesture would cause the third window 3 to move partially off screen (upwards) followed by a rapid return, such as by a snap or rubber-band effect, to the primary display 104. This result communicates to the user that the windows cannot be moved into the indicated direction as the end of the object stack has been reached.

An example will now be discussed with reference to FIG. 13. A drag gesture 700 is received in step 1300 by one or more of a gesture capture region 120, 124 and a touch sensitive display 110, 114. In response, middleware 520, for each active touch sensitive display, moves, in step 1304, each currently displayed image from an active to an inactive display position or to an active display position of the other touch sensitive display. The logic then terminates in step 1308.

The exemplary systems and methods of this disclosure have been described in relation to communication devices. However, to avoid unnecessarily obscuring the present disclosure, the preceding description omits a number of known structures and devices. This omission is not to be construed as a limitation of the scopes of the claims. Specific details are set forth to provide an understanding of the present disclosure. It should however be appreciated that the present disclosure may be practiced in a variety of ways beyond the specific detail set forth herein.

Furthermore, while the exemplary aspects, embodiments, and/or configurations illustrated herein show the various components of the system collocated, certain components of the system can be located remotely, at distant portions of a distributed network, such as a LAN and/or the Internet, or within a dedicated system. Thus, it should be appreciated, that the components of the system can be combined in to one or more devices, such as a communication device, or collocated on a particular node of a distributed network, such as an analog and/or digital telecommunications network, a packet-switch network, or a circuit-switched network. It will be appreciated from the preceding description, and for reasons of computational efficiency, that the components of the system can be arranged at any location within a distributed network of components without affecting the operation of the system. For example, the various components can be located in a switch such as a PBX and media server, gateway, in one or more communications devices, at one or more users' premises, or some combination thereof. Similarly, one or more functional portions of the system could be distributed between a telecommunications device(s) and an associated computing device.

Furthermore, it should be appreciated that the various links connecting the elements can be wired or wireless links, or any combination thereof, or any other known or later developed element(s) that is capable of supplying and/or communicating data to and from the connected elements. These wired or wireless links can also be secure links and may be capable of communicating encrypted information. Transmission media used as links, for example, can be any suitable carrier for electrical signals, including coaxial cables, copper wire and fiber optics, and may take the form of acoustic or light waves, such as those generated during radio-wave and infra-red data communications.

Also, while the flowcharts have been discussed and illustrated in relation to a particular sequence of events, it should be appreciated that changes, additions, and omissions to this sequence can occur without materially affecting the operation of the disclosed embodiments, configuration, and aspects.

A number of variations and modifications of the disclosure can be used. It would be possible to provide for some features of the disclosure without providing others.

For example in one alternative embodiment, the desktops are moved by gestures received in a gesture capture region 120, 124, and windows are moved by gestures received in a touch sensitive display 110, 114.

In yet another embodiment, the systems and methods of this disclosure can be implemented in conjunction with a special purpose computer, a programmed microprocessor or microcontroller and peripheral integrated circuit element(s), an ASIC or other integrated circuit, a digital signal processor, a hard-wired electronic or logic circuit such as discrete element circuit, a programmable logic device or gate array such as PLD, PLA, FPGA, PAL, special purpose computer, any comparable means, or the like. In general, any device(s) or means capable of implementing the methodology illustrated herein can be used to implement the various aspects of this disclosure. Exemplary hardware that can be used for the disclosed embodiments, configurations and aspects includes computers, handheld devices, telephones (e.g., cellular, Internet enabled, digital, analog, hybrids, and others), and other hardware known in the art. Some of these devices include processors (e.g., a single or multiple microprocessors), memory, nonvolatile storage, input devices, and output devices. Furthermore, alternative software implementations including, but not limited to, distributed processing or component/object distributed processing, parallel processing, or virtual machine processing can also be constructed to implement the methods described herein.

In yet another embodiment, the disclosed methods may be readily implemented in conjunction with software using object or object-oriented software development environments that provide portable source code that can be used on a variety of computer or workstation platforms. Alternatively, the disclosed system may be implemented partially or fully in hardware using standard logic circuits or VLSI design. Whether software or hardware is used to implement the systems in accordance with this disclosure is dependent on the speed and/or efficiency requirements of the system, the particular function, and the particular software or hardware systems or microprocessor or microcomputer systems being utilized.

In yet another embodiment, the disclosed methods may be partially implemented in software that can be stored on a storage medium, executed on programmed general-purpose computer with the cooperation of a controller and memory, a special purpose computer, a microprocessor, or the like. In these instances, the systems and methods of this disclosure can be implemented as program embedded on personal computer such as an applet, JAVA® or CGI script, as a resource residing on a server or computer workstation, as a routine embedded in a dedicated measurement system, system component, or the like. The system can also be implemented by physically incorporating the system and/or method into a software and/or hardware system.

Although the present disclosure describes components and functions implemented in the aspects, embodiments, and/or configurations with reference to particular standards and protocols, the aspects, embodiments, and/or configurations are not limited to such standards and protocols. Other similar standards and protocols not mentioned herein are in existence and are considered to be included in the present disclosure. Moreover, the standards and protocols mentioned herein and other similar standards and protocols not mentioned herein are periodically superseded by faster or more effective equivalents having essentially the same functions. Such replacement standards and protocols having the same functions are considered equivalents included in the present disclosure.

The present disclosure, in various aspects, embodiments, and/or configurations, includes components, methods, processes, systems and/or apparatus substantially as depicted and described herein, including various aspects, embodiments, configurations embodiments, subcombinations, and/or subsets thereof. Those of skill in the art will understand how to make and use the disclosed aspects, embodiments, and/or configurations after understanding the present disclosure. The present disclosure, in various aspects, embodiments, and/or configurations, includes providing devices and processes in the absence of items not depicted and/or described herein or in various aspects, embodiments, and/or configurations hereof, including in the absence of such items as may have been used in previous devices or processes, e.g., for improving performance, achieving ease and\or reducing cost of implementation.

The foregoing discussion has been presented for purposes of illustration and description. The foregoing is not intended to limit the disclosure to the form or forms disclosed herein. In the foregoing Detailed Description for example, various features of the disclosure are grouped together in one or more aspects, embodiments, and/or configurations for the purpose of streamlining the disclosure. The features of the aspects, embodiments, and/or configurations of the disclosure may be combined in alternate aspects, embodiments, and/or configurations other than those discussed above. This method of disclosure is not to be interpreted as reflecting an intention that the claims require more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed aspect, embodiment, and/or configuration. Thus, the following claims are hereby incorporated into this Detailed Description, with each claim standing on its own as a separate preferred embodiment of the disclosure.

Moreover, though the description has included description of one or more aspects, embodiments, and/or configurations and certain variations and modifications, other variations, combinations, and modifications are within the scope of the disclosure, e.g., as may be within the skill and knowledge of those in the art, after understanding the present disclosure. It is intended to obtain rights which include alternative aspects, embodiments, and/or configurations to the extent permitted, including alternate, interchangeable and/or equivalent structures, functions, ranges or steps to those claimed, whether or not such alternate, interchangeable and/or equivalent structures, functions, ranges or steps are disclosed herein, and without intending to publicly dedicate any patentable subject matter. 

1-22. (canceled)
 23. A method for gesture-based navigation through windows displayed on a mobile device, the method comprising: receiving a first gesture through a touch-sensitive screen of the mobile device, wherein the touch sensitive screen comprises a first display area and a second display area, wherein the first gesture is received though the first display area, wherein the gesture indicates navigation through an ordered set of windows; in response to receiving the first gesture, ceasing to display a first displayed window of the ordered set of windows on the first display area of the touch sensitive screen and commencing to display the first displayed window on the second display area of the touch sensitive screen; receiving a second gesture though the first display area of the touch-sensitive display; and in response to receiving the second gesture, ceasing to display a second displayed window of the ordered set of windows on the first display area of the first touch sensitive screen and commencing to display the second displayed window on the second display area of the second touch sensitive screen, wherein the second displayed window on the second display area of the second touch sensitive screen at least partially obscures the first displayed window on the second display area of the second touch sensitive screen.
 24. The method of claim 23, wherein the received first gesture and second gesture are drag gestures.
 25. The method of claim 24, wherein the first and second drag gestures are made in a direction from the first display area toward the second display area.
 26. The method of claim 24, wherein the touch-sensitive screen is in a portrait display orientation and the first and second drag gestures are horizontal.
 27. The method of claim 23, wherein the first displayed window was in an active state and the second displayed window was in an inactive state prior to the first gesture, and wherein, in response to the first drag gesture, the first displayed window is in the inactive state and the second displayed window is in the active state after the first gesture.
 28. The method of claim 23, wherein the touch-sensitive display is foldable.
 29. The method of claim 28, wherein the touch-sensitive display comprises a first touch-sensitive display and a second touch-sensitive display joined by a hinge and wherein the first display area is associated with the first touch-sensitive display and the second display area is associated with the second touch-sensitive display.
 30. A non-transitory, computer-readable medium comprising a set of instructions stored therein which, when executed by a processor, causes the processor to perform gesture-based navigation through windows displayed on a mobile device by: receiving a first gesture through a touch-sensitive screen of the mobile device, wherein the touch sensitive screen comprises a first display area and a second display area, wherein the first gesture is received though the first display area, wherein the gesture indicates navigation through an ordered set of windows; in response to receiving the first gesture, ceasing to display a first displayed window of the ordered set of windows on the first display area of the touch sensitive screen and commencing to display the first displayed window on the second display area of the touch sensitive screen; receiving a second gesture though the first display area of the touch-sensitive display; and in response to receiving the second gesture, ceasing to display a second displayed window of the ordered set of windows on the first display area of the first touch sensitive screen and commencing to display the second displayed window on the second display area of the second touch sensitive screen, wherein the second displayed window on the second display area of the second touch sensitive screen at least partially obscures the first displayed window on the second display area of the second touch sensitive screen.
 31. The non-transitory, computer-readable medium of claim 30, wherein the received first gesture and second gesture are drag gestures.
 32. The non-transitory, computer-readable medium of claim 31, wherein the first and second drag gestures are made in a direction from the first display area toward the second display area.
 33. The non-transitory, computer-readable medium of claim 31, wherein the touch-sensitive screen is in a portrait display orientation and the first and second drag gestures are horizontal.
 34. The non-transitory, computer-readable medium of claim 30, wherein the first displayed window was in an active state and the second displayed window was in an inactive state prior to the first gesture, and wherein, in response to the first drag gesture, the first displayed window is in the inactive state and the second displayed window is in the active state after the first gesture.
 35. The non-transitory, computer-readable medium of claim 30, wherein the touch-sensitive display is foldable.
 36. The non-transitory, computer-readable medium of claim 35, wherein the touch-sensitive display comprises a first touch-sensitive display and a second touch-sensitive display joined by a hinge and wherein the first display area is associated with the first touch-sensitive display and the second display area is associated with the second touch-sensitive display.
 37. A mobile device comprising: a touch-sensitive display; a processor coupled with the touch sensitive display; and a memory coupled with and readable by the processor and storing therein a set of instructions which, when executed by the processor, causes the processor to perform gesture-based navigation through windows displayed on a mobile device by: receiving a first gesture through the touch-sensitive screen, wherein the touch sensitive screen comprises a first display area and a second display area, wherein the first gesture is received though the first display area, wherein the gesture indicates navigation through an ordered set of windows; in response to receiving the first gesture, ceasing to display a first displayed window of the ordered set of windows on the first display area of the touch sensitive screen and commencing to display the first displayed window on the second display area of the touch sensitive screen; receiving a second gesture though the first display area of the touch-sensitive display; and in response to receiving the second gesture, ceasing to display a second displayed window of the ordered set of windows on the first display area of the first touch sensitive screen and commencing to display the second displayed window on the second display area of the second touch sensitive screen, wherein the second displayed window on the second display area of the second touch sensitive screen at least partially obscures the first displayed window on the second display area of the second touch sensitive screen.
 38. The mobile device of claim 37, wherein the received first gesture and second gesture are drag gestures.
 39. The mobile device of claim 38, wherein the first and second drag gestures are made in a direction from the first display area toward the second display area.
 40. The mobile device of claim 38, wherein the touch-sensitive screen is in a portrait display orientation and the first and second drag gestures are horizontal.
 41. The mobile device of claim 37, wherein the first displayed window was in an active state and the second displayed window was in an inactive state prior to the first gesture, and wherein, in response to the first drag gesture, the first displayed window is in the inactive state and the second displayed window is in the active state after the first gesture.
 42. The mobile device of claim 37, wherein the touch-sensitive display is foldable.
 43. The mobile device of claim 42, wherein the touch-sensitive display comprises a first touch-sensitive display and a second touch-sensitive display joined by a hinge and wherein the first display area is associated with the first touch-sensitive display and the second display area is associated with the second touch-sensitive display. 